{
  "manageEntity": {
    "action": "Save",
    "entityId": "1960875480",
    "entityType": "Track",
    "nonce": "0xe430dc0960979916c734933a23f862048073439f27b46f6df0d9a2834a5e6199",
    "signature": "0x153d5fba33894a971c646700577615af0e0a67f0bceb8f5bf408b68618806bc9792b3e191de613a7a98a5f49456e54cd0dca2f559d5e616d60f86cd7f137c5e71c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}