How to make a correct request to flet.yandex for sorting?

Question

API

Good hour.
I am engaged in the integration of Yandex.taxi cabinets.
It is not possible to make an api request for sorting "sort_order", it is not clear how to pass an object in an array.
Descriptions on Yandex :

Answer 1

What do not you understand? Just like everything else:

"sort_order": {
  "direction": "asc",
  "field": "balance"
}