UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '38ETwJq2em4E8lDpchiAK+tYWMs5ZrEru98LveZkcss=' 
WHERE 
  key_id = '3b5738a51838f18e90a6de492f79f8b382e7757633ca6ca64075312f29b28859' 
  AND (
    token = '38ETwJq2em4E8lDpchiAK+tYWMs5ZrEru98LveZkcss=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )