How to set Russian encoding in BATCH file with json CURL request?

Question

JSON

Good afternoon
I'm doing a simple kind of script, but it came out crap with a Russian string.

SET /P TITLE=Enter NAME:

SET JSON="{\"name\":\"%TITLE%\"}"

curl.exe -H "Content-type: application/json" -X POST http://********.ru/video -d %JSON%

The text file itself, now in 866 encoding
, tried to drive it into different ones, to no avail ...
how to set it so that there are no problems when entering a Russian string?
maybe now it just either crashes or is not recorded,
as I understand it, you can bring it to the form
\u041c\u043e\u0439 \u0441\u0447\u0430\u0
but how to do it in batch
thanks