Clean up

        return (status == HttpStatus.SC_OK || status == HttpStatus.SC_CREATED);

    }

    private String assembleJson() {

        StringBuilder stringBuilder = new StringBuilder();

        stringBuilder.append("{");

        stringBuilder.append("\"");

        stringBuilder.append(PUSH_TOKEN_HASH);

        stringBuilder.append("\"");

        stringBuilder.append(":\"");

        stringBuilder.append(pushTokenHash.trim());

        stringBuilder.append("\",");

        stringBuilder.append("\"");

        stringBuilder.append(DEVICE_PUBLIC_KEY);

        stringBuilder.append("\"");

        stringBuilder.append(":\"");

        stringBuilder.append(devicePublicKey.trim());

        stringBuilder.append("\",");

        stringBuilder.append("\"");

        stringBuilder.append(PROXY_SERVER);

        stringBuilder.append("\"");

        stringBuilder.append(":\"");

        stringBuilder.append(proxyServer.trim());

        stringBuilder.append("\"");

        stringBuilder.append("}");

        return stringBuilder.toString();

    }

}