JsonProvider when json is array as dictionary

I have some json that looks like this:
“42125”: { … },
“8838138”: {…},
“68514”: {…}
// etc …
So this is an array as a dictionary, and I haven’t been able to use JsonProvider with this structure. It is creating a type with properties named after the indexes (42125, etc). This doesn’t work as the numbers aren’t fixed (coming from a database somewhere). Any samples that deal with this kind of structure?