private String getVkMethodRequest(String method, String parameters) {
		Preconditions.checkNotNull(accessTokenDto, "You are not authorized.");
		return MessageFormat.format(VK_METHOD_REQUEST_PATTERN, method,
				!Strings.isNullOrEmpty(parameters) ? parameters : "",
				!Strings.isNullOrEmpty(parameters) ? "&" : "",
				accessTokenDto.getAccessToken());
	}