UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RkfCj6b4u97fkp9n+Jxg1Y8rHIbrcardFZ/91TuWz14=' 
WHERE 
  key_id = 'c6481e4b931fec0b4e7544089ef91b38a99f140d27841b4b5645abf54164d2ba' 
  AND (
    token = 'RkfCj6b4u97fkp9n+Jxg1Y8rHIbrcardFZ/91TuWz14=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )