{
	"@context": "https://www.w3.org/ns/activitystreams",
	"summary": "Sally added a picture of her cat to her cat picture collection",
	"type": "Add",
	"actor": {
		"type": "Person",
		"name": "Sally"
	},
	"object": {
		"type": "Image",
		"name": "A picture of my cat",
		"url": "http://example.org/img/cat.png"
	},
	"origin": {
		"type": "Collection",
		"name": "Camera Roll"
	},
	"target": {
		"type": "Collection",
		"name": "My Cat Pictures"
	}
}