refactor: Rework `Entity` class #14069

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.3) / Sanity Tests	3m 3s
Others (8.2) / Sanity Tests	4m 6s
Others (8.4) / Sanity Tests	2m 36s
Others (8.5) / Sanity Tests	2m 49s
SeparateProcess	0s
CacheLive	0s
Upload coverage results to Coveralls	0s
DatabaseLive	0s
	12m 36s

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