{
  "manageEntity": {
    "action": "Save",
    "entityId": "98334",
    "entityType": "Track",
    "nonce": "0x1c29e072cffc3469dd7cc0e78e87b9521a9d6749ab2bf94dc3316eccb75c1d4f",
    "signature": "0xa759c4e640665a5d284b4270565678a4405914124f499fe4724a5aa81753391e032e516098ca0a7ef7b5e5b50c43d0db0af0a3c4474be5d590619b9257683db81c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}