Spawn and Register entity

Good afternoon, I have a resource pack in a zip file that is uploaded to the player. It has a model.json animation. On the server, I create an entity with geometry. How do I use animation on this creature?

Or how to add your entity to the server through the resource pack while spawning it with animation?

 

An example of animations can be seen on the Lifeboat server

 

No, i search use AnimateEntityPacket