POST /user HTTP/1.1
Host: localhost:8080
Content-Length: 224
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="username"

admin*
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="password"

adminadmin*
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="email"

admin@admin.hu*
----WebKitFormBoundary7MA4YWxkTrZu0gW