Zephyr Squad Cloud REST API integration is not working for me

Hi Team,
I am integrating Zephyr Squad Cloud REST API in my python application to automate the execution of test cycles. I have performed following steps to create application but was stuck.

  1. I have tried to create JWT token using following link

https://developer.atlassian.com/cloud/jira/platform/understanding-jwt/

  1. I am using generated token to access following method using my credentials (Access Key and JWT Token)

I am facing following error while calling this

Response Result:
401 Unauthorized
Your presented credentials do not provide access to this resource.

Please review my request and give me proper guidance to integrate this cloud API in my application

Thanks,
Akhtar

Immediate response is highly appreciated.

Thanks,
Akhtar

My immediate response is almost nobody here will know how the Zephyr Squad APIs work. Maybe ask for help in the support channels recommended by the vendor, SmartBear?