{
  "manageEntity": {
    "action": "Save",
    "entityId": "1706317033",
    "entityType": "Track",
    "nonce": "0x06e67d474720f8b88bd531deef4c93f287b46de59d58a2157491184c6d6a79d1",
    "signature": "0x16eebadd2a3a122b3240f8fb4296660607921384bd110d1ecb003963b6ce4c660af40792ef81582f9479947a28bddc1fd7ba8153edec1824819c3dbe2fcc51b81b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}