{
  "manageEntity": {
    "action": "Save",
    "entityId": "2061072144",
    "entityType": "Track",
    "nonce": "0xccd67b6970db34799013f16a1076df54b4e0c56b8decaca288636fb56a71fb28",
    "signature": "0x87e0a8381816d029e97a2ed9060755740fa7d1a34eae55d91c6b3dd93a4a7adf6fa193e34c8e027ee19563c6c6a4c7d34e36a3bd53cba039a9aa9283c5c9ca1b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}