{
  "manageEntity": {
    "action": "Save",
    "entityId": "467588627",
    "entityType": "Track",
    "nonce": "0xeb832f25b8a2e949e991b33f7adb151c83da80a9e7cba266f532febebba83e35",
    "signature": "0x7b633e5d6017fef20c92a6c4eef70764c292e8a8c2a1292bacd8d6fd1d4ef5fc7ffd618228eb45774fb5ffccf839a2ce8e506255a88e8bcbcf6a417b567f97291b",
    "signer": "0xF11F60bFb591E532d6E71E699ddfdfC58f377CA1",
    "userId": "458027684"
  }
}