skelooth - I made these a while back. I don't officially support them but they work and I use them in my project. Your welcome to give them a try.
Preview of usage
Storage = 3D Object
Table = 2D Object
List = 1D Object (Basically the same as a dictionary)
They function like a normal Array/Hash table would in most programming languages. They support merging/loading raw JSON to them which is what you looking for. I provided a few example capx files that i work on to test them when i make an update to them. They should explain how to use it. Hopefully this helps