Login and store Authorization Token for subsequent use (MVC5 and Web API 2)

I need to login to a site automatically with a username and password. I need to pass this into the login page as form data and store off the returned authorization token for later use to move to the next step of my test. I am completely new to SoapUI. How can I do this. Please be specific. I am usually a server-side developer however, I've been forced into this security role by necessity. Please help!