SAP SCP Workflow Task HyperLink in email Task

Hello Experts,

I have requirement for Boundary time event to trigger an email task and in the email subject the link the User task should be provided so that the processor can choose the link and can navigate to the SAP SCP work inbox application and portal. I have found the contextual variables for the workflow instance and the workflow user taks instance but how to build the whole portal + Inbox app in the link .

$.context.lastUserTask1 = $.usertasks.usertasks1.last;

Is there any way to do it ?

Thanks,

Vijay