In Wirecast, this should work.
Open Wirecast and enter "Broadcast settings"
In that section, Add a new destination by clicking on the '+' below the list.
Select "Flash Low Bandwidth" as the Encoder Preset
Destination: RTMP Flash Sever
+Address: Input the following address:
--replace information in bold with your own credentials
User Agent: Wirecast/FM 1.0->Stream name : Any one word name without space or
special charecters Ex: