UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6HMUM6/WUjWDFsCgdoZQ4+OtsYMXg+nDnvwndZhMns=' 
WHERE 
  key_id = '27dab2d72f3637ee0790d1f023cd341af204aa77da0c43721dc80a40ac9d14d7' 
  AND (
    token = 'a6HMUM6/WUjWDFsCgdoZQ4+OtsYMXg+nDnvwndZhMns=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )