{
  "manageEntity": {
    "action": "Save",
    "entityId": "1047848834",
    "entityType": "Track",
    "nonce": "0xdd69b863270ba85d9bbbf8b8f38754a10962bc865a42bc15a8a80b8653872cd6",
    "signature": "0x3b44b86a3171597056a5b94d00e3c5bc2212ce76f1e766387fff022511fe22a221713ac18779ec8d93cfee9bfaa04ade4c4443933042ac76acf82ae83a512a5e1c",
    "signer": "0x4500303E05fBbcF978dbd09d73Dc6e8084A6f1b0",
    "userId": "834909005"
  }
}