UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NSkZdqyHw25C7AJPrAsS3Vc1jZIXvZPySqc8usVVcuQ=' 
WHERE 
  key_id = '6526627c2e4f37132a44441f81e6412574e1499013aa333127075320b7e6c9e7' 
  AND (
    token = 'NSkZdqyHw25C7AJPrAsS3Vc1jZIXvZPySqc8usVVcuQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )