Merge branch 'activity' of http://120.27.238.55:7000/r/exchange into activity

xiaoyong931011

2021-03-26 6941f2c4f33359d8746bc1388fb67e1995f96129

 src/main/java/com/xcong/excoin/modules/blackchain/service/UsdtErc20UpdateService.java

@@ -85,7 +85,7 @@
        // 获取最新区块
        String string = redisUtils.getString(ETH_USDT_BLOCK_NUM);
        if(string==null){
            string = "11892420";
            string = "11957825";
        }
        BigInteger blockNum = new BigInteger(string);
        Credentials credentials = Credentials.create(privateKey);