{"USDT":{"code":"USD",
         "codein":"BRLT",
         "name":"Dólar Turismo",
         "high":"4.09",
         "low":"3.9",
         "varBid":"0.13",
         "pctChange":"3.103",
         "bid":"4.08",
         "ask":"4.32",
         "timestamp":"1558121820000",
         "create_date":"2019-05-17 16:39:00"
        }
 }

// Deserialization
            //Gson gson = new Gson();
            Moedas moedaDia = new Gson().fromJson(response.json, Moedas.class);


            String line = "";

            result.setResult(moedaDia);

public class Moedas {
        public List<MoedaDia> USD;

        public Moedas( List<MoedaDia> USD) {
            this.USD = USD;
        }



        public List<MoedaDia> getValue() {
            return USD;
        }

        public void setValue(List<MoedaDia> value) {
            this.USD = value;
        }
    }

public class MoedaDia {


        public String code; //": "BRL",
        public String codein; //": "BRL",
        public String name; //": "Dólar Comercial",
        public float high; //": "3,9766",
        public float low; //": "3,9748",
        public float varBid;  //": "0,0021",
        public float pctChange;  //: "0,05",
        public float bid; //": "3,9765",
        public float ask; //": "3,9767",
        public String timestamp;  //": "1557873008",
        public String create_date; //": "2019-05-14 21:00:05"


        public MoedaDia(String code, String codein, String name, float high, float low, float varBid, float pctChange, float bid, float ask, String timestamp, String create_date) {
                this.code = code;
                this.codein = codein;
                this.name = name;
                this.high = high;
                this.low = low;
                this.varBid = varBid;
                this.pctChange = pctChange;
                this.bid = bid;
                this.ask = ask;
                this.timestamp = timestamp;
                this.create_date = create_date;
        }
    }