function wpf_create_sandbox( $update_data, $user_id, $contact_id, $form_id ) {

    if ( $form_id == 6 ) {

        $email = explode( '@', $update_data['email'] );

        // Stop spammers
        if ( is_numeric( $email[0] ) ) {
            return;
        }

        $args = array(
            'timeout' => 20,
        );

        $response = wp_remote_post( 'https://wpfusiondemo.com/wp-json/llmstm/v1/sites?key=0mZoq6VBhce3&type=trial&template=cool-violet&email=' . urlencode( $update_data['email'] ), $args );

        if ( is_wp_error( $response ) ) {
            error_log( 'ERROR' );
            error_log( print_r( $response, true ) );
        }

        $response = json_decode( wp_remote_retrieve_body( $response ) );

        $update_data = array(
            'field[30,0]' => $response->login_url_priv,
            'field[31,0]' => $response->password,
        );

        wp_fusion()->crm->update_contact( $contact_id, $update_data, false );

    }

}

add_action( 'wpf_forms_post_submission', 'wpf_create_sandbox', 10, 4 );