xxxxxxxxxx
1
curl -X POST  https://api.trongrid.io/wallet/exchangecreate -d {"owner_address":"419844f7600e018fd0d710e2145351d607b3316ce9", 、
2
"first_token_id":token_a, "first_token_balance":100, "second_token_id":token_b,"second_token_balance":200}