/**
     * Update contact
     *
     * @access public
     * @return bool
     */

    public function update_contact( $contact_id, $data ) {

        if(is_wp_error( $this->connect() ))
            return false;

        if(!isset($data['email']))
            $data['email'] = $this->get_email_from_cid($contact_id);

        $user_id = wp_fusion()->user->get_user_id( $contact_id );
        $lists = get_user_meta( $user_id, 'activecampaign_lists', true );

        if(!empty($lists)) {

            foreach((array)$lists as $list_id) {
                $data['p[' . $list_id . ']'] = $list_id;
            }

        } else {

            // In case contact has no lists, assume the first list
            $data['p[1]'] = 1;

        }

        $data['id'] = $contact_id;

        $result = $this->app->api( 'contact/edit', $data );

        if( $result->success == 1 ) {

            return true;

        } else {

            return false;

        }

    }