{
    "indices": [
        {
            "index": "subject_regular",
            "type": "subject",
            "tier_access_level": "regular"
        },
        {
            "index": "subject_private",
            "type": "subject_private",
            "tier_access_level": "private"
        },
        {
            "index": "file_private",
            "type": "file",
            "tier_access_level": "private"
        },
        {
            "index": "studies_open",
            "type": "studies_open",
            "tier_access_level": "libre"
        },
        {
            "index": "studies_controlled_access",
            "type": "studies_controlled_access",
            "tier_access_level": "private"
        }
    ]
}