{
  "manageEntity": {
    "action": "Save",
    "entityId": "1023996380",
    "entityType": "Track",
    "nonce": "0x917b1585b4464127bc99471cbc42883b929ff66e2ec25c09f185c1f97691fd58",
    "signature": "0xd6d92ddb42642eddba8b936d5b7c06ab1069865fd975f23e801883d3f0e39f6f2b01eda7f73e5cded74d9cd45c69310221e51f8e9f3625d814aabd8f236a184a1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}