I'm pretty stumped been working on a project for abit now but for the last 2 days i haven't been able to move past this step.
How do i even go about hacking something like this?

Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 268
Cookie: __cfduid=dd9acec730525f2b1e8efb69442c7676014871601 38; loginCookie=959f391079575df9cb9c729dd0855f77ebc2d4 da; _ga=GA1.2.1841378553.1487160143; bannerCookie=btc_banner_1; wheel_session=a%3A8%3A%7Bs%3A10%3A%22session_id%22 %3Bs%3A32%3A%2256c7a50d94ec5f7200ca9af94ea909f8%22 %3Bs%3A10%3A%22ip_address%22%3Bs%3A14%3A%22162.158 .122.37%22%3Bs%3A10%3A%22user_agent%22%3Bs%3A76%3A %22Mozilla%2F5.0+%28X11%3B+Ubuntu%3B+Linux+x86_64% 3B+rv%3A51.0%29+Gecko%2F20100101+Firefox%2F51.0%22 %3Bs%3A13%3A%22last_activity%22%3Bi%3A1487235864%3 Bs%3A9%3A%22user_data%22%3Bs%3A0%3A%22%22%3Bs%3A10 %3A%22secret_key%22%3Bs%3A20%3A%22P1J1KDsYZK7wMKDU xTPJ%22%3Bs%3A7%3A%22user_id%22%3Bs%3A6%3A%2261093 3%22%3Bs%3A6%3A%22ref_id%22%3Bs%3A5%3A%2256013%22% 3B%7Db25be00c85afa651fa83b0e03b1264b67f12ee95; _token_=82f71762755165d2a96dfd2eb5fe75a1; _dc_gtm_UA-72550979-1=1

Like, i've tried decoding, tried editing, i'm stuck. The only program i'm decent at is burpsuite and thats what i've been using can it even deal with this?