{
"@context": "https://www.w3.org/ns/activitystreams",
"summary": "Sally and Joe offered the Foo object",
"type": "Offer",
"actor": [
"http://joe.example.org",
{
"type": "Person",
"id": "http://sally.example.org",
"name": "Sally"
}
],
"object": "http://example.org/foo"
}