{
    "device_id": 1,
    "device_name": "WeatherNode-01",
    "device_status": "service",
    "sampling_interval_sec": 300,
    "location_name": "New device",
    "latitude": "50.1320000",
    "longitude": "18.9040000",
    "measured_at": "2026-03-14 23:57:02",
    "received_at": "2026-03-14 23:57:03",
    "temperature_c": "24.0",
    "humidity_pct": "46.6",
    "pressure_hpa": "973.6",
    "battery_voltage": "0.0",
    "signal_rssi": "-36.0",
    "quality_flag": "ok",
    "online_status": "offline"
}