[RESTAPI V1] Simple Auth Check fails

POST https://selectapi.datascope.refinitiv.com/RestApi/v1/Authentication/RequestToken

With the above, I have successfully created an Authentication Token ("value" from the successful response) following the REST API tutorial.

However, it fails when I try to check auth providing my Authorization Token as below

GET https://selectapi.datascope.refinitiv.com/RestApi/v1/Users/Users(1111111)

With header as

Authorization: Token <"_Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx">

or

Authorization: Token <_Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>

I keep getting

{
    "error": {
        "message": "Authentication request failed because of invalid token"
    }
}

ps. It works when I visit https://selectapi.datascope.refinitiv.com/RestApi/v1/Users/Users(1111111) on Chrome and type my id and password manually.