Hi Highland,
Thanks for the quick response!
I wasn't clear in my question. The paid visitors I'm referring to are visitors coming through search ads, not people who are subscribed to our service. So this isn't regarding paywalls. Rather, we're trying to send paid traffic to a page to see if it will increase its rankings. At the same time, we want to have a different user experience for paid and non-paid visitors to increase conversions.
Also we'd like to have different content for the two versions, not just have one version with no/little content and another with all of it.