google-service-account-key-SAMPLE.json

{
  "type": "service_account",
  "project_id": "<your project name>",
  "private_key_id": "<your private key id>",
  "private_key": "<your private key>",
  "client_email": "<email of your service account>",
  "client_id": "<client id>",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/<email of your service account>"
}