[
    {
        "pk": 100,
        "model": "proxy_models.BaseUser",
        "fields": {
            "name": "Django Pony"
        }
    },
    {
        "pk": 100,
        "model": "proxy_models.TrackerUser",
        "fields": {
            "status": "emperor"
        }
    },
    {
        "pk": 100,
        "model": "proxy_models.Issue",
        "fields": {
            "summary": "Pony's Issue",
            "assignee": 100
        }
    }
]