PaymentTrigger::getEventParams

public function getEventParams($entity): ?array
		{
			return [
				'event_name' => Facebook\Event::EVENT_PURCHASE,
				'action_source' => Facebook\Event::ACTION_SOURCE_SYSTEM_GENERATED,
				'user_data' => $entity,
				'custom_data' => [
					'value' => $this->payment->getSumPaid() ?? $this->payment->getSum(),
					'currency' => $this->payment->getOrder()->getCurrency(),
				],
			];
		}