{
  "@context": "https://www.w3.org/ns/activitystreams",
  "type": "Image",
  "name": "My cat taking a nap",
  "url": "http://example.org/cat.jpeg",
  "attributedTo": [
    "http://joe.example.org",
    {
      "type": "Person",
      "name": "Sally"
    }
  ]
}