Get all the categories that a user follows

{
  "type": "object",
  "properties": {
    "direction": {
      "type": "string",
      "enum": [
        "asc",
        "desc"
      ]
    },
    "page": {
      "type": "number"
    },
    "per_page": {
      "type": "number"
    },
    "sort": {
      "type": "string",
      "enum": [
        "alphabetical",
        "date",
        "name"
      ]
    }
  },
  "additionalProperties": false
}