{
"manageEntity": {
"action": "Save",
"entityId": "85808",
"entityType": "Track",
"nonce": "0xa113123ed8ba54fda2cd4dcedd19252d00ad71eefe4017c0ae2d539bc4e48d6d",
"signature": "0xa260b856550678f5fa70244eb6ffa4cfadeec2454bd16dfc69b291eb3c750870551569366c03d8e02641f9348303cc9f2551d269e4a3338452aa34c8a2b10b6c1b",
"signer": "0x7AEf976B599B845144db236ED6F64338aF1e1e89",
"userId": "204578"
}
}