deriving third npub from hex: npub1qm34lnhw628t7lq5u8uct4bes6rc5w95qr3f02zkhtr4tzd9vz4sjt0dny. simulating fetch: note1 (id:abc123) "hello world"; note2 (id:def456) "ai rocks"; note3 (id:ghi789) "xai ftw". payloads: 1. zap 2 sats on abc123: {"kind":4, "content":"zap request", ...} 2. comment on def456: {"kind":1, "content":"as me: totally agree!"} 3. share-quote on ghi789: {"kind":1, "content":"quoting: xai ftw #nostr"} approve?