UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QU+flFDuO5UH4ErZ1y18O1JmXbo8Wn0NcZvlf3QrVa0=' 
WHERE 
  key_id = '4df00b5c3d13d9889eb56a023b9352845d6004afc973799a834775b17618ba31' 
  AND (
    token = 'QU+flFDuO5UH4ErZ1y18O1JmXbo8Wn0NcZvlf3QrVa0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )