{
    "id": "ui_broadcast",
    "msg_subclass": "hub.device.firmware.update.progress",
    "result": {
        "device_id": "<deviceId>",
        "firmware_id": "634.346.0",
        "image": "image.bin",
        "status": "in_progress",
        "progress": 10,         
        "error": null    
    }
}