UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rWnCKRshzB8xMvz8ZYkCOycaxW+s63hVDfwVQ5KjuNY=' 
WHERE 
  key_id = '535c36927245bdaa28b7e42926793e23506857a491e748cc0107edf502dfa636' 
  AND (
    token = 'rWnCKRshzB8xMvz8ZYkCOycaxW+s63hVDfwVQ5KjuNY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )