UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+/W0XiBhXB4NHT8RO8FEe8YFyI9iyJJc2aAoUKSiF+0=' 
WHERE 
  key_id = '6b8177b073e1c82d41e36e4262a9a83148825918569b43428caee5e2634d49c0' 
  AND (
    token = '+/W0XiBhXB4NHT8RO8FEe8YFyI9iyJJc2aAoUKSiF+0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )