Add expiration_date and request_user_data to external share link creation in Deluge

Background
I deliver files to my clients via Workdrive external share links.

I create the folder, add the files, create the external share link, then add the link to the invoice in Zoho Books.
I am in the process of simplifying this process with the following steps:

1. (COMPLETE) Create the share folder from CRM Deal Detail view via a button, and store the folder link in the associated deal.

2. (IN PROCESS) Create the external share link for the created Workdrive folder from the CRM Deal Detail View via a button, and store the link in the associated deal.

3. (PENDING #2) Push the share link to Zoho books for the associated invoice.

I have step 1 working fine.
I have Step 2 function pretty darn close using the following github as a reference.
https://github.com/TheWorkflowAcademy/Creating-Folder-Doc-and-External-Share-Link-ZohoWorkDrive/blob/main/README.md

ISSUE:
I need to add the expiration_date, and request user data to the external link creation in Deluge.

I cannot find any reference for these parameters to get them setup.

With the expiration date , I am getting a data type mis-match, and for the request user data, I do not know what the syntax or anything should be.

Can anyone give me a reference or point me in the right direction?

Here is how I have my parameter map that is functional for now with the user data set to false for now, and the input fields and expiration date commented out.

//Parameters Map

externalLinkMap = Map();

externalLinkMap.put("resource_id",WorkDriveFolderID);

externalLinkMap.put("link_name",dealName);

externalLinkMap.put("request_user_data",false);

//externalLinkMap.put("input_fields", name, email);

externalLinkMap.put("allow_download",true);

//externalLinkMap.put("expiration_date": expire_date);

externalLinkMap.put("role_id","6");

attributesMap = {"attributes":externalLinkMap,"type":"links"};

dataMap = Map();

dataMap.put("data",attributesMap);

Your help is appreciated