{
  "manageEntity": {
    "action": "Save",
    "entityId": "1007229",
    "entityType": "Track",
    "nonce": "0xf3e1177f2160ec12fa6855525e1864235779ae16af98ba8a85a53b97e9ea95bf",
    "signature": "0xfe9dde8a7dc4911927518d76fae5343d227658eb4ad7432d9e15f59944a232b034a9cc256cb1cdad49dddda021554c46f0a477c85c270bce8cf18183fc9f0e361b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}