v1.CourseStudentItem

{
    "avatar": "https://example.com/avatar.jpg",
    "course_end_time": 1643673600,
    "course_id": "course456",
    "course_start_time": 1640995200,
    "created_at": 1640995200,
    "deleted_at": 1640995200,
    "enrollment_status": 1,
    "fee_type": 2,
    "lesson_id": [
        1,
        2
    ],
    "mobile": "13800138000",
    "name": "张三",
    "nickname": "小张",
    "role_name": "学生",
    "source": 2,
    "user_id": "user123",
    "validity_type": 1
}