UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c5XB7nB7CdLv+HbhaGkhNkznMq3fVOGWuL8VkCwOLT0=' 
WHERE 
  key_id = '91c6fdaf65701432d0f46b676b9b8e9d13c16f61aab9440f8c8ee288bd9348f4' 
  AND (
    token = 'c5XB7nB7CdLv+HbhaGkhNkznMq3fVOGWuL8VkCwOLT0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )