Smartsheet webhook subscope weird behavior

I have a sheet on smartsheet that looks like this:

I wish that when `test_trigger` column in the sheet got changed, smartsheet can send a notification to my AWS API gateway.

So I use webhook with subscope to setup the notification.

However, I can't tell which cell in `test_trigger` column got changed from the request sent from smartsheet.

Here's the request I received when I change the second row of `test_trigger` column:

```

"webhookId":938672385222532,

"scope":"sheet",

"scopeObjectId":3981243399333764,

"events":

  [

    {"objectType":"cell","eventType":"created","rowId":2247170404575108,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:30:21.000+0000"},

    {"objectType":"cell","eventType":"created","rowId":6750770031945604,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:32:06.000+0000"},

    {"objectType":"cell","eventType":"created","rowId":4498970218260356,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:32:06.000+0000"},

    {"objectType":"column","eventType":"updated","id":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:40:58.000+0000"},

    {"objectType":"cell","eventType":"created","rowId":9002569845630852,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:40:58.000+0000"},

    {"objectType":"cell","eventType":"updated","rowId":2247170404575108,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:40:58.000+0000"},

    {"objectType":"cell","eventType":"updated","rowId":4498970218260356,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-04T09:40:58.000+0000"},

    {"objectType":"cell","eventType":"updated","rowId":6750770031945604,"columnId":180749923051396,"userId":273173041178XXX,"timestamp":"2021-10-05T02:02:00.000+0000"}

  ]

```

Does the request mean that when one of the cell in the column changes, the entire column was updated?

How can I use the information to identify which row changes?

Here's the code I used for creating the webhook:

```

webhook = smartsheet_client.Webhooks.create_webhook(

 smartsheet.models.Webhook({

  'name': 'My Webhook',

    'callbackUrl': 'https://myurl.execute-api.ap-southeast-1.amazonaws.com/debug',

  'scope': 'sheet',

  'scopeObjectId': target_sheet_id,

  'subscope': {

    "columnIds": [target_column_id]

  },

  'events': ['*.*'],

  'version': 1}))

```