VBScript rest HttpResponse

Živjo rabim pomoč :)
nikakor nemorem ujeti HttpResponse.text iun ga napolniti v neko spremenljivko.
dobim odgovor in ga prikažem v msgbox ampak da bi pa od celega responsa uporabil token in ga uporabil naprej pri pošiljanju mi ne gre.
ali ima kdo kako idejo ali vzorec za pokazat?

Set objStream = CreateObject("ADODB.Stream")
objStream.CharSet = "utf-8"
objStream.Open


Set objStream = Nothing
restRequest = "&response_type=accesstoken&grant_type=password&username=&password=&ClientID=&ClientSecret="

contentType ="application/json"

Set oWinHttp = CreateObject("WinHttp.WinHttpRequest.5.1")

oWinHttp.Open "POST", "url", False

oWinHttp.Send restRequest    
response = oWinHttp.responseText
msgBox response   

tukaj bi rad iz response texta dobil token vn