[
    {
        "uid": {  "type":"User", "id":"bob" },
        "attrs": {
            "addr": { "__extn": { "fn": "ip", "arg": "127.0.0.1" }}
        },
        "parents": []
    },
    {
        "uid": {  "type":"Action", "id":"view" },
        "attrs": {},
        "parents": []
    },
    {
        "uid": {  "type":"Photo", "id":"VacationPhoto94.jpg"},
        "attrs": {
            "owner": { "__entity": { "type":"User", "id":"bob"} }
        },
        "parents": []
    }
]