UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'mcW+RiKkcXVbz4T3JjPUxdub9wEr9MAffj+Ih3fQa5U=' 
WHERE 
  key_id = '3e54f9b2db556386cf71db63becb3788d56978f97c0fff28989e420a520415a5' 
  AND (
    token = 'mcW+RiKkcXVbz4T3JjPUxdub9wEr9MAffj+Ih3fQa5U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )