Routing in Web Api with different types of route values

How will Route parameters look like, if the request link is like this:

Cash/Users/{UserId}/Transactions?PartnerUserSessionKey={PartnerUserSessionKey}

Something like this ?

[Route("cash/users/{userid}/transactions")]
        private void CreateCashTransaction(int userid,[FromUri] Transaction transaction, Someclass otherinfo) {}

Where Someclass is additional info which is not included in Url

Thanks in advance.