UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'quwsI6L3osMSnc5E+BnQHuQEU3hRyITL6oYfLSrc8no=' 
WHERE 
  key_id = '15d1bfc8913b76c2bce6b8b9c9f3925d7dba5e9ba4c4068a37dfb2aaf1b90541' 
  AND (
    token = 'quwsI6L3osMSnc5E+BnQHuQEU3hRyITL6oYfLSrc8no=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )