UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dilnEgbh3tjrBY6kRnUfIERaUTEMYiEqzeBsHjpEjkA=' 
WHERE 
  key_id = 'a66a9179880996684eb6f3f1e4ad649ccfb61e42d7a2b0e7d05b5e0bdd7a7a43' 
  AND (
    token = 'dilnEgbh3tjrBY6kRnUfIERaUTEMYiEqzeBsHjpEjkA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )