UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'krrHQ3MjwYmPWaf1WbbOt7mauQJuBRkytQRgMp47kDk=' 
WHERE 
  key_id = '42147b6f691f4fb0b642a26c211b9ff077cdd3fa8a8112543b3b03ccecd37144' 
  AND (
    token = 'krrHQ3MjwYmPWaf1WbbOt7mauQJuBRkytQRgMp47kDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )