It would be best to have a “subscription” feature built into a popular client such as nostr:nprofile1qqs9xtvrphl7p8qnua0gk9zusft33lqjkqqr7cwkr6g8wusu0lle8jcprpmhxue69uhhqun9d45h2mfwwpexjmtpdshxuet5qyt8wumn8ghj7un9d3shjtnswf5k6ctv9ehx2aqlk6gvg . It could even be something as simple as receiving a reminder/notification to support a creator you’ve opted into supporting, with a button to zap them. That keeps it optional and leaves the user in control. Typically subscribers would get access to content that others aren’t privy to, or at least access it earlier than others get it. They would eventually need to figure out how that would work on Nostr. Probably “early access” is easier to achieve than “exclusive access” because of the nature of digital content and how easily events are broadcasted around nostr.