{
  "manageEntity": {
    "action": "Save",
    "entityId": "20242265",
    "entityType": "Track",
    "nonce": "0xc380aa10231a28122d3ed71a2ada9eb956d272c564c01d0c3ebccd110975d20b",
    "signature": "0xde2c1530c7f67340bb1fa84bd19c3e8b450dc167dded6033b55defeee941054759a3637dac25cf98cf297a5c733b642b27b2b6d3de9819de65cfb1842b0bb9341c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}