Whos account_id in webhook message?

I want to know,the Account_id in webhook message is regular?
in AccountLevel app

for example,
Account: A
User: A, b, c
I created an app (AccountLevel) using A,with oauth&webhook actived 。

Then I complate a webinar by user b, and received the webhook message (webinar .ended)


It looks like in the message, account_id is the id of A。
So, if I publish this app ,And other account (eg: D) installed this app,
And then D completes a webinar, I will find whos id in 【account_id】 the webhook message?
I think it’s id of D, is that correct?

Yes this is correct @jiangqimin !