UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nkXNP0bvGmrTPS9SERZzlxBhfh9yqRwFzaDU50eAsNc=' 
WHERE 
  key_id = '7ad23836ebd649edfee515b450b5a19ff5f8fe6dbf4652096f0afa1d7f1631e5' 
  AND (
    token = 'nkXNP0bvGmrTPS9SERZzlxBhfh9yqRwFzaDU50eAsNc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )