nostr:npub1xaklulvyjhcvljrd4lgn7cswj5sa9ewphvn0zswq0gfcadn2qv0qlwudwf how best to attach a signature? modify the json object after signing? e.g. sign

{"foo": "bar"}

and then add the signature to that?

{"foo": "bar", "signature": ""}

Or via an http header? either `Authorization`, or some bespoke `X-FEDI-SEARCH` for instance

cc @Zerglingman@freespeechextremist\.com