ProviderCacheState
bytesDownloadedinteger,null<int64>nullable
cacheVersionstring | nullnullable
fetchedAtinteger<int64>required
recordCountinteger,null<int64>nullable
sourceUrlstring | nullnullable
ProviderCacheState
{
"bytesDownloaded": 0,
"cacheVersion": "string",
"fetchedAt": 0,
"recordCount": 0,
"sourceUrl": "string"
}