Retrofit2, how I can convert response with diferent object names but same data types

I have one call that return different objects name, in this case, each name is the hash of your wallet address, but I would like to treat them indifferently because all that matters is the data that is inside them, using a standard converter like Gson I am not able to do this, is there any way to do it manually?

{
"0x1234": {
    "success": true,
    "cache_last_updated": 1642815869695,
    "total": 500
},
"0x1244445": {
    "success": true,
    "cache_last_updated": 1642815869695,
    "total": 324
},
"0x47851":{
    "success": true,
    "cache_last_updated": 1642815869695,
    "total": 324
}
}

My Repository:

class WalletsResumeRepository(
private val service: apiService
) {
suspend fun getAddressData(listAddress: List<String>): Flow<Result<List<DetailModel>>> =
    flow {
        emit(Result.success(service.getWalletResume(listAddress))
    }.catch { e ->
        emit(Result.failure(RuntimeException("Something went wrong ${e.cause}")))
    }
   }

my repository always falls into the catch scenario with an NPE, remembering that the response can have countless addresses so infinite object names, how can I treat them as generics and map only the responses as lists? or something like that?

from Retrofit2, how I can convert response with diferent object names but same data types