UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RNUYSkyDQa3mheux51ykM6sCQm0zG2kFVwmT92LRcTo=' 
WHERE 
  key_id = '8ce00a77780f9f44b444fee919a552e21ecb27776180b6b0a07af8d049e2fa94' 
  AND (
    token = 'RNUYSkyDQa3mheux51ykM6sCQm0zG2kFVwmT92LRcTo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )