diff --git a/cmd/discord/main.go b/cmd/discord/main.go
index e282fdd..1fd4442 100644
--- a/cmd/discord/main.go
+++ b/cmd/discord/main.go
@@ -4,7 +4,7 @@ import (
 	"github.com/bwmarrin/discordgo"
 	"github.com/kiasuo/bot/internal/commands"
 	"github.com/kiasuo/bot/internal/helpers"
-	"github.com/kiasuo/bot/internal/users"
+	"github.com/kiasuo/bot/internal/users_sql"
 	"log"
 	"os"
 	"os/signal"
@@ -45,7 +45,7 @@ func main() {
 		}
 
 		userID := GetUserID(interaction)
-		user := users.GetByDiscordID(userID)
+		user := users_sql.GetByDiscordID(userID)
 
 		responder := commands.DiscordResponder{
 			Interaction: *interaction.Interaction,
@@ -57,7 +57,7 @@ func main() {
 			return
 		}
 
-		if user.State != users.Ready {
+		if user.State != users_sql.Ready {
 			responder.Respond("Пошел нахуй.")
 			return
 		}
diff --git a/cmd/telegram/main.go b/cmd/telegram/main.go
index 24b25ea..4511f52 100644
--- a/cmd/telegram/main.go
+++ b/cmd/telegram/main.go
@@ -4,7 +4,7 @@ import (
 	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 	"github.com/kiasuo/bot/internal/commands"
 	"github.com/kiasuo/bot/internal/helpers"
-	"github.com/kiasuo/bot/internal/users"
+	"github.com/kiasuo/bot/internal/users_sql"
 	"log"
 	"strings"
 )
@@ -42,7 +42,7 @@ func main() {
 
 func handleMessage(update tgbotapi.Update) {
 	var (
-		user    *users.User
+		user    *users_sql.User
 		command string
 	)
 
@@ -56,7 +56,7 @@ func handleMessage(update tgbotapi.Update) {
 			return
 		}
 
-		user = users.GetByTelegramID(update.Message.ForwardFrom.ID)
+		user = users_sql.GetByTelegramID(update.Message.ForwardFrom.ID)
 
 		if user == nil {
 			responder.Respond("Пользователь не зарегистрирован")
@@ -65,14 +65,14 @@ func handleMessage(update tgbotapi.Update) {
 
 		command = commands.AdminCommandName
 	} else if update.Message.IsCommand() {
-		user = users.GetByTelegramID(update.Message.From.ID)
+		user = users_sql.GetByTelegramID(update.Message.From.ID)
 
 		if user == nil {
 			responder.Respond("Ты кто такой? Уйди.")
 			return
 		}
 
-		if user.State != users.Ready {
+		if user.State != users_sql.Ready {
 			responder.Respond("Пошел отсюда.")
 			return
 		}
@@ -101,12 +101,12 @@ func handleCallbackQuery(update tgbotapi.Update) {
 		return
 	}
 
-	var user *users.User
+	var user *users_sql.User
 
 	if data[0] == commands.AdminCommandName {
-		user = users.GetByID(data[2])
+		user = users_sql.GetByID(data[2])
 	} else {
-		user = users.GetByTelegramID(update.CallbackQuery.From.ID)
+		user = users_sql.GetByTelegramID(update.CallbackQuery.From.ID)
 	}
 
 	context := commands.Context{
diff --git a/compose.yaml b/compose.yaml
index a388e50..7eab6ee 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -32,7 +32,7 @@ services:
     expose:
       - 5432
     healthcheck:
-      test: [ "CMD", "pg_isready" ]
+      test: [ "CMD", "pg_isready", "-U", "$POSTGRES_USER" ]
       interval: 10s
       timeout: 5s
       retries: 5
diff --git a/internal/client/client.go b/internal/client/client.go
index c5a2f10..0862d8f 100644
--- a/internal/client/client.go
+++ b/internal/client/client.go
@@ -4,14 +4,14 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"github.com/kiasuo/bot/internal/users"
+	"github.com/kiasuo/bot/internal/users_sql"
 	"net/http"
 )
 
 const BaseUrl = "https://kiasuo-proxy.oddya.ru/diary"
 
 type Client struct {
-	User users.User
+	User users_sql.User
 }
 
 func httpRequest[T any](client Client, request *http.Request) (*http.Response, *T, error) {
@@ -64,7 +64,7 @@ func RefreshToken(client Client) error {
 
 	client.User.AccessToken = result.AccessToken
 	client.User.RefreshToken = result.RefreshToken
-	users.UpdateToken(client.User, result.AccessToken, result.RefreshToken)
+	client.User.UpdateToken(result.AccessToken, result.RefreshToken)
 	return nil
 }
 
diff --git a/internal/client/types.go b/internal/client/types.go
index 1e7b0f4..0768e43 100644
--- a/internal/client/types.go
+++ b/internal/client/types.go
@@ -5,6 +5,11 @@ type Token struct {
 	RefreshToken string `json:"refreshToken"`
 }
 
+// TODO decrypt token and check expiration date
+type TokenPayload struct {
+	Expiration int64 `json:"exp"`
+}
+
 type User struct {
 	ID       int     `json:"id"`
 	Username string  `json:"username"`
diff --git a/internal/commands/admin.go b/internal/commands/admin.go
index 2ea6cd9..e1a1abe 100644
--- a/internal/commands/admin.go
+++ b/internal/commands/admin.go
@@ -2,7 +2,7 @@ package commands
 
 import (
 	"github.com/kiasuo/bot/internal/helpers"
-	"github.com/kiasuo/bot/internal/users"
+	"github.com/kiasuo/bot/internal/users_sql"
 	"strconv"
 )
 
@@ -11,11 +11,11 @@ const AdminCommandName string = "-internal-admin"
 func AdminCommand(context Context, responder Responder, formatter Formatter) {
 	user := context.User
 
-	state := map[users.UserState]string{
-		users.Unknown:     "неизвестно",
-		users.Ready:       "готов",
-		users.Pending:     "ожидает",
-		users.Blacklisted: "заблокирован",
+	state := map[users_sql.UserState]string{
+		users_sql.Unknown:     "неизвестно",
+		users_sql.Ready:       "готов",
+		users_sql.Pending:     "ожидает",
+		users_sql.Blacklisted: "заблокирован",
 	}[user.State]
 
 	template := formatter.Title("Панель управления") +
@@ -26,8 +26,8 @@ func AdminCommand(context Context, responder Responder, formatter Formatter) {
 	keyboard := Keyboard{
 		KeyboardRow{
 			KeyboardButton{
-				Text:     helpers.If(user.State == users.Blacklisted, "Разблокировать", "Заблокировать"),
-				Callback: AdminCommandName + ":blacklist:" + user.ID.Hex(),
+				Text:     helpers.If(user.State == users_sql.Blacklisted, "Разблокировать", "Заблокировать"),
+				Callback: AdminCommandName + ":blacklist:" + string(rune(user.ID)),
 			},
 		},
 	}
@@ -44,8 +44,8 @@ func AdminCommand(context Context, responder Responder, formatter Formatter) {
 func AdminCallback(context Context, responder Responder, formatter Formatter, data []string) {
 	switch data[1] {
 	case "blacklist":
-		isBlacklisted := context.User.State == users.Blacklisted
-		users.UpdateState(context.User, helpers.If(isBlacklisted, users.Ready, users.Blacklisted))
+		isBlacklisted := context.User.State == users_sql.Blacklisted
+		context.User.UpdateState(helpers.If(isBlacklisted, users_sql.Ready, users_sql.Blacklisted))
 	default:
 		responder.Respond("Неизвестная команда. Меню устарело?")
 		return
diff --git a/internal/commands/context.go b/internal/commands/context.go
index c3aa8bc..5bfaf6d 100644
--- a/internal/commands/context.go
+++ b/internal/commands/context.go
@@ -2,12 +2,12 @@ package commands
 
 import (
 	"github.com/kiasuo/bot/internal/client"
-	"github.com/kiasuo/bot/internal/users"
+	"github.com/kiasuo/bot/internal/users_sql"
 )
 
 type Context struct {
 	Command string
-	User    users.User
+	User    users_sql.User
 }
 
 func (c Context) GetClient() client.Client {
diff --git a/internal/commands/settings.go b/internal/commands/settings.go
index b832813..ff7e13e 100644
--- a/internal/commands/settings.go
+++ b/internal/commands/settings.go
@@ -3,7 +3,6 @@ package commands
 import (
 	"github.com/kiasuo/bot/internal/client"
 	"github.com/kiasuo/bot/internal/helpers"
-	"github.com/kiasuo/bot/internal/users"
 	"strconv"
 )
 
@@ -84,7 +83,7 @@ func updateUserStudent(context Context, responder Responder, formatter Formatter
 		return err
 	}
 
-	users.UpdateStudent(context.User, studentID, studentNameAcronym)
+	context.User.UpdateStudent(studentID, studentNameAcronym)
 	responder.Respond("Ученик %s успешно выбран!", formatter.Bold(studentNameAcronym))
 	return nil
 }
@@ -95,6 +94,6 @@ func getDiscord(context Context, responder Responder) {
 		return
 	}
 
-	users.UpdateDiscord(context.User, "")
+	context.User.UpdateDiscord("")
 	responder.Respond("Аккаунт Discord успешно отвязан!")
 }
diff --git a/internal/users/users.go b/internal/users/users.go
index fab9b33..a59d136 100644
--- a/internal/users/users.go
+++ b/internal/users/users.go
@@ -80,18 +80,18 @@ func update(user User, update bson.D) {
 	}
 }
 
-func UpdateToken(user User, accessToken string, refreshToken string) {
-	update(user, bson.D{{Key: "accessToken", Value: accessToken}, {Key: "refreshToken", Value: refreshToken}})
+func (u User) UpdateToken(accessToken string, refreshToken string) {
+	update(u, bson.D{{Key: "accessToken", Value: accessToken}, {Key: "refreshToken", Value: refreshToken}})
 }
 
-func UpdateState(user User, state UserState) {
-	update(user, bson.D{{Key: "state", Value: state}})
+func (u User) UpdateState(state UserState) {
+	update(u, bson.D{{Key: "state", Value: state}})
 }
 
-func UpdateStudent(user User, studentID int, studentNameAcronym string) {
-	update(user, bson.D{{Key: "studentID", Value: studentID}, {Key: "studentNameAcronym", Value: studentNameAcronym}})
+func (u User) UpdateStudent(studentID int, studentNameAcronym string) {
+	update(u, bson.D{{Key: "studentID", Value: studentID}, {Key: "studentNameAcronym", Value: studentNameAcronym}})
 }
 
-func UpdateDiscord(user User, discordID string) {
-	update(user, bson.D{{Key: "discordID", Value: discordID}})
+func (u User) UpdateDiscord(discordID string) {
+	update(u, bson.D{{Key: "discordID", Value: discordID}})
 }
diff --git a/internal/users_sql/users_sql.go b/internal/users_sql/users_sql.go
index fe82ed8..5070429 100644
--- a/internal/users_sql/users_sql.go
+++ b/internal/users_sql/users_sql.go
@@ -98,18 +98,18 @@ func GetByDiscordID(discordID string) *User {
 	return queryRow("SELECT * FROM users WHERE discord_id = $1", discordID)
 }
 
-func UpdateToken(user User, accessToken string, refreshToken string) {
-	query("UPDATE users SET access_token = $1, refresh_token = $2 WHERE id = $3", accessToken, refreshToken, user.ID)
+func (u User) UpdateToken(accessToken string, refreshToken string) {
+	query("UPDATE users SET access_token = $1, refresh_token = $2 WHERE id = $3", accessToken, refreshToken, u.ID)
 }
 
-func UpdateState(user User, state UserState) {
-	query("UPDATE users SET state = $1 WHERE id = $2", state, user.ID)
+func (u User) UpdateState(state UserState) {
+	query("UPDATE users SET state = $1 WHERE id = $2", state, u.ID)
 }
 
-func UpdateStudent(user User, studentID int, studentNameAcronym string) {
-	query("UPDATE users SET student_id = $1, student_name_acronym = $2 WHERE id = $3", studentID, studentNameAcronym, user.ID)
+func (u User) UpdateStudent(studentID int, studentNameAcronym string) {
+	query("UPDATE users SET student_id = $1, student_name_acronym = $2 WHERE id = $3", studentID, studentNameAcronym, u.ID)
 }
 
-func UpdateDiscord(user User, discordID string) {
-	query("UPDATE users SET discord_id = $1 WHERE id = $2", discordID, user.ID)
+func (u User) UpdateDiscord(discordID string) {
+	query("UPDATE users SET discord_id = $1 WHERE id = $2", discordID, u.ID)
 }