
{
  "@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"
  }
}
  