I need help Locus Live Tracking questions

I am developing a real-time location tracking website that works with Locus Map. The current workflow is as follows: the Locus Map app periodically sends user location data (including longitude, latitude, altitude, nickname, etc.) to my server, and the server is required to return a response upon receiving this data.

I have tested responses in both KML and GPX formats, and Locus Map can parse and display them on the map without any issues. However, I now wish to use JSON format for the server's response, and I am unsure whether Locus Map supports directly parsing JSON-formatted response data.

If it is supported, what specific fields are required in the JSON response? Is there any official documentation or example available for reference?