{
  "manageEntity": {
    "action": "Save",
    "entityId": "1009197865",
    "entityType": "Track",
    "nonce": "0xf3b0ee73fed2984ccb7af00411e97e86441cae24fcf734b10c3d507a232e5cbb",
    "signature": "0x9cd39563efb87c9d53ecd867d64ff56e075fba6124a902186fd59beac1cf9cf272da0046533f4404ee71a48544c01926da2fd2a1c8ed6ce0da99a8cb90b52df01c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}