curl --request GET \
  --url https://{instance}.omniapp.co/api/scim/v2/groups/{userGroupId} \
  --header 'Authorization: Bearer <token>'

{
  "displayName": "Blob Sales",
  "id": "mEhXj6ZI",
  "meta": {
    "created": "2024-08-29T20:33:36.626Z",
    "lastModified": "2024-08-29T20:33:36.626Z",
    "resourceType": "Group"
  },
  "schemas": [
    "urn:ietf:params:scim:schemas:core:2.0:Group"
  ],
  "members": [
    {
      "display": "[email protected]",
      "value": "9e8719d9-276a-4964-9395-a493189a247c"
    }
  ]
}