My license is the same as Unity’s license and Unreal Marketplace license (depending where you bought it). But the key points of both licenses are:
- You can make a commercial game with those animations
- You can only distribute those animations in form of a compiled game. You can not distribute them in raw form and you can not distribute them in not-compiled form.
- You can not give them away or re-sell them. License is for you and your team. So, you can not give them as a present to some other developer.
For futher details, read UE4’s or Unity’s store EULA.