{
  "manageEntity": {
    "action": "Save",
    "entityId": "796973136",
    "entityType": "Track",
    "nonce": "0x8a79991b557b14ec5077df9840b55a36b07babd9889bf350c74cd0157d2058d4",
    "signature": "0x5d5c1518c3ca7c4d582ef9bae0ca285df88bec81fa3ba5ca0f89f6bfbb91c0d76356b39235a73953b2c4b96053f309cb12c2d8b59177b5d434e0e847adc3886c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}