{
  "manageEntity": {
    "action": "Save",
    "entityId": "1170297769",
    "entityType": "Track",
    "nonce": "0xe5ec0be247077a49be233a54a21a6cc36b141903c48720c75aa67ba99880b6f1",
    "signature": "0xdc4c34e4b7f7b2c49e9a54090c1ee2d03adef21d6a3094532eb83bdf515c775c1413a05c22f38ac9ff333ea2e92295a3bdf109bb6e2d9469b5a4df1bec2b41b41b",
    "signer": "0xD06A00B950F1f08B348e3cEf0B75Da0010adF313",
    "userId": "238712"
  }
}