UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0BtkJ6XWq8khZVefQZERA15MBD0ZPXQHSbOKZ8rcmwU=' 
WHERE 
  key_id = 'b16d46e17fce0131b8d97fb1b439aa1f3c401b0541094151075018da8847028c' 
  AND (
    token = '0BtkJ6XWq8khZVefQZERA15MBD0ZPXQHSbOKZ8rcmwU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )