Howdy,
I’ve scanned the internet looking for what this is called but I have no idea.

From the little that is shown in the show the bottom spins (in the photo it’s the top since it’s upside down) but I have no where to begin to try to find a similar one. The show has influences from Asia so idk if it is an Asian style lock.
Also you can tell that it is not completely round either, it has a hexagonal shape.
I’m hoping someone here can help point me in the right direction.
Thank you for your help