NIP-FA (NIP-250): Kind-scoped follows

https://github.com/nostr-protocol/nips/blob/1187d2ba5d3c914b62e2d1360a5d6532dfb18b53/FA.md

kind ごとのフォロー リスト

kind は複数指定できる

```

{

"kind": 967,

"tags": [

["p", "", ""],

["p", "", ""],

["k", ""],

["k", ""]

]

}

```

PR: https://github.com/nostr-protocol/nips/pull/1605

#Nostr

nostr:nevent1qqsxm6zag7tln8tvrt4mny2adhg68mqe8rq3mrv5j9j90fvtw80v7ts7awd2j