UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8Xnmz49in67qLvrL+Xqdky1x31NwYyJoc7mm/1LG7uU=' 
WHERE 
  key_id = 'a38af9d5ebbe9cf84a4187072097e036f8167e96deb1849dea313b61ad468b08' 
  AND (
    token = '8Xnmz49in67qLvrL+Xqdky1x31NwYyJoc7mm/1LG7uU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )