$account = new Recurly_Account();
$account->account_code = 'nishabadaddress@yopmail.com';
$account->email = 'nishabadaddress@yopmail.com';
$account->first_name = 'nisha';
$account->last_name = 'pan';

$address = array();
$address['address1'] = '123 main st';
$address['address2'] = '';
$address['city'] = 'los angeles';
$address['state'] = 'CO';
$address['zip'] = '91202';
$address['country'] = 'US';
$address['phone'] = '1111111111';
$account->address = $address;

$subscription = new Recurly_Subscription();
$subscription->plan_code = 'ffftrial';
$subscription->currency = 'USD';
$subscription->quantity = 1;
$billing_info = array('token_id' => 'some-token');
$account->billing_info = $billing_info;
$subscription->account = $account;

$subscription->create();