Пример отправки к Федиверсу из сURL

curl -v -X POST -H "Authorization: Bearer YOUR_TOKEN" \
    	-H 'Signature: keyId="YOUR_PATH_TO_KEY",headers="(request-target) host date digest",signature="YOUR_DIGEST_SIGNATURE"' \
        -H "Digest: SHA-256=YOUR_LOGIN_AND_PASSWORD_IN_SHA256" \
        -H "Content-Type: application/activity+json" -d '{
          "@context": "https://www.w3.org/ns/activitystreams",
          "type": "Note",
          "content": "Привет федеративной сети через curl!"
        }' "YOUR_FEDIVERSE_URL_INBOX"