{
  "manageEntity": {
    "action": "Save",
    "entityId": "1716422065",
    "entityType": "Track",
    "nonce": "0x269f5644effe35fe9edf5a12abd1fe4033ef0c64296f1cc76e9b5406f6ec841f",
    "signature": "0x15d128c9f4430eb5a50583ff119d6d31fc7621be0eb9928f842d570f9bdb8d0a6e77bc1d4cf84981d392e0e639040a3df9fee234f00053067425a726c7f8c70f1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}