{
  "manageEntity": {
    "action": "Save",
    "entityId": "2054895027",
    "entityType": "Track",
    "nonce": "0x6a7d4bd3aa640bb3300d563bccc7c8d30e7e7175eaa3179cce0331a14a6b82ec",
    "signature": "0x593ec2418271bc51fb787c19a417a08dca99ceabff4376a601b9406768443dc638bd0d71558d51fa69d35e3553c38eaf06bf8e7df83b22cf409f31b2c16b8c2b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}