{
  "manageEntity": {
    "action": "Save",
    "entityId": "1295092062",
    "entityType": "Track",
    "nonce": "0xf5d1f5d1fc2992e6013e3c74098bc5181b3a45fb919a37ef70dda7174aa6a23e",
    "signature": "0xd7e1992e4a1f764b5207ae54ac1414f28694271d7924d85526a7b5b3e9dc53d53f42f7c62a9687ea677cccc2d844ee09a973c894ec75697b640596f30709e06d1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}