{
  "manageEntity": {
    "action": "Save",
    "entityId": "1168388119",
    "entityType": "Track",
    "nonce": "0x24efe1276d971aca945b4e586da2435fa9b44d9cfa4f914736ab478c372c9a7f",
    "signature": "0xeb1fe1baaa91854c5904a88ad8d42dd1f2f0c6b0e8134fbddce6a97c99c913aa1077399dc1a1b552960569169f8e9a725c9aa626e67a809738a821f8caf9dfcb1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}