{ "@context": "https://www.w3.org/ns/activitystreams", "summary": "Sally moved a post from List A to List B", "type": "Move", "actor": "http://sally.example.org", "object": "http://example.org/posts/1", "target": { "type": "Collection", "name": "List B" }, "origin": { "type": "Collection", "name": "List A" } }