{
  "manageEntity": {
    "action": "Save",
    "entityId": "1014087",
    "entityType": "Track",
    "nonce": "0xb119fc62b4c25207926a34c1de6c23d49d3006ba4cda8c30f0e0e00bccd90e89",
    "signature": "0x8ef9bb7445ba8c05536803039dede5efc6e78550573ff8c5a19692fbea29158a72c66464950a686dd48ea89075307a1e6baad11a239b6b494ceccbd69250a8211b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}