curl --request GET \
  --url http://localhost:8080/cabinet/admin/broadcasts/filters

{
  "filters": [
    {
      "key": "<string>",
      "label": "<string>",
      "count": 123,
      "group": "<string>"
    }
  ],
  "tariff_filters": [
    {
      "key": "<string>",
      "label": "<string>",
      "tariff_id": 123,
      "count": 123
    }
  ],
  "custom_filters": [
    {
      "key": "<string>",
      "label": "<string>",
      "count": 123,
      "group": "<string>"
    }
  ]
}