UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RJW5xbhEhMQhIq3hZS0aal5OjpJBbtC80dpSzeMzoTE=' 
WHERE 
  key_id = '3bea6dff629e2a3d374371494e4dace256c42784429d49493df45fac58e6e9c1' 
  AND (
    token = 'RJW5xbhEhMQhIq3hZS0aal5OjpJBbtC80dpSzeMzoTE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )