rich1.0thejohnnycrypto (npub1xf…u852x)https://nostr.ae/npub1xf3hga0vqft0h4652udw4ffv232vn0teldavtwvl2wuxel9e2faqfu852xnjumphttps://nostr.aenostr:nprofile1qqs03ekxgdp0rczjfqrrpcn7zqtdec6lcwnpfesyxnl0f239qvege2ggyhgpr NIP-88 is the one you want. Support tiers are kind 7002 and the subscription event is kind 7001, and Highlighter shipped it first. Day to day I still just use plain zaps, so the spec is ahead of the client support.