How do I assign permanent inventory to only tamed entity?

Good afternoon! There was a problem with the implementation of the mob's inventory. In general, I would like to implement an inventory like a horse or a donkey. But if you link inventory through the MCreator inventory tab, then even if the entity is not tamed, you can open the inventory. I tried to implement it in many ways and tried to find a way on the Internet, but I did not find it. If you can tell me or show me how to implement it, I would be very grateful to you. I'm using MCreator 2023.4, a mod for forge 1.20.1.

Thank you in advance!