query HelpCenterIndex($id: ID!) {
  helpCenterIndex(id: $id) {
    helpCenterId
    hash
    navIndex {
      type
      id
      title
      slug
      parentId
      status
    }
    createdAt {
      unixTimestamp
      iso8601
    }
    createdBy {
      __typename
      ... on UserActor {
        userId
        user {
          __typename
        }
      }
    }
    updatedAt {
      unixTimestamp
      iso8601
    }
  }
}

{
  "id": "id"
}

{
  "data": {
    "helpCenterIndex": {
      "helpCenterId": "id",
      "hash": "string",
      "navIndex": [
        {
          "type": "ARTICLE",
          "id": "id",
          "title": "string",
          "slug": "string",
          "parentId": "id",
          "status": "PUBLISHED"
        }
      ],
      "createdAt": {
        "unixTimestamp": "string",
        "iso8601": "string"
      },
      "createdBy": {
        "__typename": "UserActor",
        "userId": "id",
        "user": {
          "__typename": "User"
        }
      },
      "updatedAt": {
        "unixTimestamp": "string",
        "iso8601": "string"
      }
    }
  }
}