main/index.json

{
    "type": "index",
    "subCategories": [
        {
            "id": "leisure",
            "type": "index",
            "name:en": "Leisure, Sport and Shopping",
            "subCategories": [
                {
                    "id": "gastro",
                    "name:en": "Gastronomy"
                },
                {
                    "id": "shop",
                    "name:en": "Shopping"
                }
            ]
        },
        {
            "id": "trees",
            "name:en": "Trees"
        },
        {
            "id": "parks",
            "name:en": "Parks"
        }
    ]
}