Formidable Forms: Create Entry, Update metas for existing entry

create_entry.php

<?
$arg = array(
			'form_id' => $opts['subscription_form'],
			'item_key' => FrmAppHelper::get_unique_key( 
						'', $pre . 'frm_items', 'item_key', 0 ),
			'item_meta' => array(
				$opts['subscription_id'] => $payment->response->getSubscriptionId(),
				$opts['subscription_pre_payment_id'] => $payment->entry->id,
				$opts['subscription_date'] => $metas[$opts['recur_date']],
				$opts['subscription_amount'] => $metas[$opts['recur_amount']],
				$opts['subscription_interval'] => $opts['interval'],
				$opts['subscription_interval_count'] => $opts['interval_count'],
			),
		);
		FrmEntry::create($arg);

get_fields.php

<?php
$fields = FrmField::get_all_for_form($form_id);

update_metas.php

<?
global $wpdb;
$pre = $wpdb->prefix;

$pledge_entry = FrmEntry::getOne($pledge_entry_id, true);
$metas = $pledge_entry->metas;
$metas[1038] = $total;
$metas[1040] = $balance;
$metas[1016] = $status;

FrmEntryMeta::update_entry_metas($pledge_entry_id, $metas);

$time = current_time('mysql',1);
$sql="UPDATE {$pre}frm_items set updated_at='$time' where id={$pledge_entry_id}";
$wpdb->query($sql);