{
  "manageEntity": {
    "action": "Save",
    "entityId": "2034394608",
    "entityType": "Track",
    "nonce": "0x18adf55ba284ea0c61c2891314e8fb244842873c4234644c265014c8d76cd366",
    "signature": "0xabf3be2c8c22df2ef03701b0d8ca0e22f2381884f4d70fa92b450636384e853752795fd5384d439395ea73b074a4572c9cc2998f2591800f9408b74ed13763bd1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}