{
  "manageEntity": {
    "action": "Save",
    "entityId": "1382784276",
    "entityType": "Track",
    "nonce": "0xe482ac5a971f7c33ac48390a16b5a90c979e709e14d3fd82130ea5f964f2c0a7",
    "signature": "0x2d0983b118b63f5193dfd005a2bb9837676692128f48ad51088bef905030507902cecfb0df411c411553a94dff458d97bf86927b9e56adc3703ef61951242bd21c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}