Authentication issue with Creative Cloud Libraries API

Hello

I will really appreciate if somebody can help me with my issue. Currently I am investigating how to integrate Creative Cloud Libraries in our AEMaaCS application.
I created a project in developer console and add Creative Cloud API.
I am using oAuth 2.0 playground to get access token.

When I make a ‘Get libraries’ request, I recieve 200 response:
GET https://cc-libraries.adobe.io/api/v1/libraries
x-api-key:
Authorization: Bearer

But when I try to create a library, I get 403 response
POST https://cc-libraries.adobe.io/api/v1/libraries
x-api-key:
Authorization: Bearer

payload:
{
“name”: “Test TIFF Library”
}

Could anybody help me to figure out what I do wrong, please?