{
  "manageEntity": {
    "action": "Save",
    "entityId": "1727431923",
    "entityType": "Track",
    "nonce": "0x9796e09086bcb6fbe1a2290a90e94b7724472c8fbe70f99b8c7aebaf04c2ab3e",
    "signature": "0x6627bff7f1513ed67ac3b0bba0edbdfee49477fc185a48ad220654ec8d175ef465e9bd6869823fdef965f080fdd7030e06628be9547ecc4b716b5a2869325e421c",
    "signer": "0xC1896EAF7ae2431A08647A163291b5a8A0cd2a6C",
    "userId": "185209372"
  }
}