{
  "manageEntity": {
    "action": "Save",
    "entityId": "82851",
    "entityType": "Track",
    "nonce": "0x6d53153c39844e09cec52934b40db1fcdaaf378ac29cfc849caf6a1726aca3b2",
    "signature": "0x0e1e2bc209703c8f608581525b16ab08d322cb3a3268c3e58a2b24dacaaff2023a7c16dfb0e6564be6d00a0bb14e8f6c2be1624857b87fd4ba0b07fb69580e371c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}