test.json

{
    "95": [
        {
            "action": "content_retag",
            "created_at": 1426689199,
            "id": 5,
            "object_id": 12279,
            "updated_at": 1426689199,
            "user_id": 95
        },
        {
            "action": "content_like",
            "created_at": 1426689190,
            "id": 4,
            "object_id": 12279,
            "updated_at": 1426689190,
            "user_id": 95
        }
    ],
    "99": [
        {
            "action": "user_follow",
            "created_at": 1426687155,
            "id": 1,
            "object_id": 96,
            "updated_at": 1426687155,
            "user_id": 99
        }
    ],
    "258": [
        {
            "action": "content_like",
            "created_at": 1427809721,
            "id": 8,
            "object_id": 25454,
            "updated_at": 1427809721,
            "user_id": 258
        }
    ]
}