UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MEGJ/iAfvuheIPHphfEm6bz9SGicoZKs7rk4hjBMgvA=' 
WHERE 
  key_id = '8d9cc803f6574b38f00250874d9863d75f33c88f8b648930e5fbc75a71a56ba1' 
  AND (
    token = 'MEGJ/iAfvuheIPHphfEm6bz9SGicoZKs7rk4hjBMgvA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )