{
  "manageEntity": {
    "action": "Save",
    "entityId": "2081462054",
    "entityType": "Track",
    "nonce": "0x4d8e42fc8a3bdccb017e338d98501bcb16c8ff881e4f2ae0ca1a15682238cc11",
    "signature": "0x5b84b3de2b0d5f9206aa8e9901e906e79af42ba40ef2f62ca4c6ee10b85827ca2e16b7cfc337eda38d94e2a94d6377c709feb728abf9ac04b8d1c33c9467d6301c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}