curl --request GET \
  --url https://api.hubapi.com/oauth/v1/access-tokens/{token}

{
  "token": "<string>",
  "user": "<string>",
  "hub_domain": "<string>",
  "scopes": [
    "<string>"
  ],
  "hub_id": 123,
  "app_id": 123,
  "expires_in": 123,
  "user_id": 123,
  "token_type": "<string>"
}