JSON returns blank result

Anthony Eufemio:

```
{"id":1,"method":"EthereumApi.GetBalanceAt","params":[{"address":"8f05f15b77c3c1ffcdc64f9056267e45f4ba258b"}]}  returns blank balance
```

```
{"id":1,"result":"{\"error\":false,\"result\":{\"balance\":\"\",\"address\":\"8f05f15b77c3c1ffcdc64f9056267e45f4ba258b\"}}","error":null}
```
