[
    {
        "user_id": "U001",
        "username": "admin",
        "password": "$2a$10$y0Ig1iJ5YRYFpfxcJT3YwudFiXz/JL5Z5D9ejIWZCjFT0Z7h3BXCu",
        "role": "administrator",
        "status": "active",
        "created_at": "2026-04-28 08:00:00"
    }
]