Go to https://zapier.com/
Create account and choose to integrate your facebook lead form to Webhook by Zapier
in Actions choose POST.
in the URL insert your Trackbox url and add to it
/api/signup/procform
in Payload Type choose json
in Data add:
ai
ci
gi
firstname
lastname
email
password = Aa12345622!
userip = 222.222.222.222
phone
so
Scroll down to Headers and make sure to add these headers:
x-trackbox-username
x-trackbox-password
x-api-key = 2643889w34df345676ssdas323tgc738
Once you're done with the setup. press Continue and make a test via Zapier. if you get response true, it means that everything is working.