UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mHXSYS1Dv89C056Uvpy47spCYJB09zYOzAynyXDZ9Sg=' 
WHERE 
  key_id = '939020ffac21af6f0d895e1ad1330b1dc48f0df718c37991e0da96a2b658d91e' 
  AND (
    token = 'mHXSYS1Dv89C056Uvpy47spCYJB09zYOzAynyXDZ9Sg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )