Android: how to HTTP post this?

Question

I am sorry, I am going mad, I have tried everything, but nothing seems to work.

I need to do HTTP Post application/x-www-form-urlencoded

of this:

'type' : 'Fb',
'data' : 
[
    'fbId' : '1234',
    'name' : 'Jo G',
    'bday' : '10/10/1999',
    'gender' : 'Fermal',
    'email' : '[email protected]'
]