How to hide things on the abstract page for non-subscribers?

I have now converted my journal into subscription based journal and hence just want to show few things to non-subscribers. Rest everything should be only for subscribers. How to hide things for non-subscribers? I am using jats-parser plugin by vitaliy

I’m afraid you need to work with plugin code. You can insert additional conditions here on XML loading:

Check how it is done for normal galleys.
So it will be something like:
if (!$xmlGalley and $subscription->getSubscription() === true)
where variable $subscription is one that you need to find how to call and method getSubscription() - find how it is trully named.