Send AMF binary package

Question

First of all I wan't to say that I'm just a beginner programmer.

For learning purpose I'm trying to send packet to server that is content type x-amf

The packet looks like this

POST (info hided)/amfgateway.php HTTP/1.1Host: (info hided)

Connection: keep-alive

Content-Length: 52

Origin: (info hided)

X-Requested-With: ShockwaveFlash/16.0.0.235

User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36

Content-Type: application/x-amf

Accept: */*

Referer: (info hided)

Accept-Encoding: gzip, deflate

Accept-Language: lt,en-US;q=0.8,en;q=0.6,ru;q=0.4,pl;q=0.2

Cookie: (info hided)

 bcAmfService.addFriend /1   

    Aa$

What is the best way to replicate this packet using C#?