code: public static void postMessengerProfile(StringEntity input) {
  		String pageToken = FbBotMillContext.getInstance().getPageToken();
  		// If the page token is invalid, returns.
  		if (!validatePageToken(pageToken)) {
  			return;
  		}
  
  		String url = FbBotMillNetworkConstants.FACEBOOK_BASE_URL
  				+ FbBotMillNetworkConstants.FACEBOOK_MESSENGER_PROFILE
  				+ pageToken;
  		postInternal(url, input);
  	}
docs: Post messenger profile.
  
  @param input
  the input