WebSocketMessage

{
    "type": "user_message",
    "content": "string",
    "action": {
        "id": "act_123",
        "type": "create_alarm",
        "time": "2025-11-09T08:00:00",
        "condition": "weather == 'rain'",
        "parameters": {
            "property1": "string",
            "property2": "string"
        }
    }
}