{
    "1": {
        "method": "changeIndex",
        "params": [
            "downloads_comments",
            "comment_approved",
            {
                "type": "key",
                "name": "comment_approved",
                "columns": [
                    "comment_open",
                    "comment_date"
                ],
                "length": [
                    null,
                    null
                ]
            }
        ]
    },
    "2": {
        "method": "changeIndex",
        "params": [
            "downloads_reviews",
            "review_approved",
            {
                "type": "key",
                "name": "review_approved",
                "columns": [
                    "review_approved",
                    "review_date"
                ],
                "length": [
                    null,
                    null
                ]
            }
        ]
    }
}