{
  "manageEntity": {
    "action": "Save",
    "entityId": "1065958822",
    "entityType": "Track",
    "nonce": "0x24ce7ae857dd9ad141cad228fb57415397b664e4c6529ec17542b5d266e50734",
    "signature": "0xa32fede39e8333cff906a9f2093e4f18058d8ea31851ed7f60021f6ae43702be1f9509b725770c2104997a1c50f206b809add01659a92d45945e5cd3ca59b6591b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}