Adding content to a wp_mail

I am trying to add the First and Last name of the registered user to the confirmation email that goes to the website owner, once the user has validated their email.

I believe the code responsible for generating said email is in the simplr-reg-page.php file:

function simplr_activate_users( $ids = false ) {
	if( !$ids ) {
		if( @$_REQUEST['action'] == 'sreg-activate-selected' AND !empty($_REQUEST['users']) ) {
			simplr_activate_users( $_REQUEST['users'] );
		}
	}
	else {
		global $wpdb,$simplr_options;
		foreach( $ids as $id )  {
			$return = $wpdb->update( $wpdb->users, array( 'user_status'=> 0 ), array( 'ID' => $id ), array('%d'), array('%d') );
			if( !$return ) {
				return new WP_Error( "error", "Benutzer konnte nicht aktiviert werden." );
			}
			$data = (array) get_userdata( $id );
			$data = (array) $data['data'];
			$data['blogname'] = get_option('blogname');
			do_action('simplr_activated_user', $data);
			$subj = simplr_token_replace( $simplr_options->mod_email_activated_subj, $data );
			$content = simplr_token_replace( $simplr_options->mod_email_activated, $data );
			$headers = "From: ".$data['blogname']."<".get_option('admin_email').">\r\n";
			wp_mail( $data['user_email'], $subj, $content);
			wp_mail('[email protected]', $subj, $content );
			wp_mail('[email protected]', $subj, $content );
			return $return;
		}
	}

[Please post code & markup between backticks or use the code button. Your posted code may now have been permanently damaged by the forum’s parser.]

…where I have added the two email call functions, (one to me, one to the website owner), and I now would like to include the First and Last Name of the user, in order to be able to distinguish one validation from another.