<p>Hi {{user_name}},</p>
                <p>Your live class is starting at {{start_time}}. Please see the details below:</p>
                <p><strong>Course:</strong> {{course}}</p>
                <p><strong>Lesson:</strong> {{lesson}}</p>
                <p><strong>Meeting Link:</strong> <a href="{{join_url}}">{{join_url}}</a></p>