UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '//TkKFXEQQTiJTyn5hsgiSQPWLHnaPYEH/YkLh18uFc=' 
WHERE 
  key_id = 'f3aa203b554d29c1bae73d87760d0a6f6de8a44d56bd1e34dddab8e619f4ae5d' 
  AND (
    token = '//TkKFXEQQTiJTyn5hsgiSQPWLHnaPYEH/YkLh18uFc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )