{"error_code": "403003","message": "Api Key is invalid"}

Hi Team,

I am getting "Api Key is invalid" error. Please help me to resolve this error.
I am generating token by url: https://ims-na1.adobelogin.com/ims/token/v2 in postman with
API: Adobe Photoshop API,

Scope:openid, AdobeID, read_organizations.

user list url: https://usermanagement.adobe.io/v2/usermanagement/users/{orgid}/{pageno}
Error Message: {"error_code": "403003","message": "Api Key is invalid"}

documents reference:
https://adobe-apiplatform.github.io/umapi-documentation/en/api/getUsersWithPage.html

Code Link:
https://github.com/adobe-apiplatform/umapi-documentation/blob/master/samples/get_users_in_org.py

Image:

Thanks in advance

Regards,
Bhoopesh Kumar