In your design, you might want to consider the Patron model where subscribers donate a scheduled monthly payment to the content producers of there choice. Implementation could involve privacy and get a little advanced, however if you just consider it now to see that your design will work for this later I think it will be good overall.

For various reasons, YouTube keeps demonetizing content and attracting a lot of negative PR. Demonetizing acts as a form of censorship when the producer really needs to paycheck. As a result, viewers are getting reminded constantly by producers to please support them via Patron. Scheduled donations helps reduce the censorship (ad money can bring in a conflict of interest) and keeps the content free from distracting Ads. Combine this with steem style payouts and I think you'll have a very attractive economic model for content producers.