{
"symbol": "XBTUSDTM",
"leverage" : "10"
}curl --location --request POST 'https://api-futures.kucoin.com/api/v2/changeCrossUserLeverage' \
--header 'Content-Type: application/json' \
--data-raw '{
"symbol": "XBTUSDTM",
"leverage" : "10"
}'{
"code": "200000",
"data": true
}