Error: You should specify one of resource in Establishing Webhook

Hi! I am new to webhooks and APIs… I am trying to connect my Asana to a webhook.
I don’t know where do I get my resouce paramtater. Can someone help me out?
I am getting this error:

“errors”: [

    {

        "message": "You should specify one of resource",

        "help": "For more information on API status codes and how to handle them, read the docs on errors: https://asana.com/developers/documentation/getting-started/errors"

    }

]

The resource is the ID of the Asana object - task, project, team, workspace, etc. - that you’re creating the webhook for.

Can you help me out?
I’m using postman in establishing webhook to zoho flow. I’m still new to this. I inputted my workspace ID as the value of my resource.
Here’s the new error:
{

"errors": [

    {

        "message": "Unrecognized request field `resource`. The only allowed keys at the top level are: data, options. Is it possible you did not wrap object properties in a `data` object?",

        "help": "For more information on API status codes and how to handle them, read the docs on errors: https://developers.asana.com/docs/errors"

    }

]

}

I am also getting this… I would be very thankful if someone can help me out. I am still new at this.
{

"errors": [

    {

        "message": "Could not parse request data, invalid JSON",

        "help": "For more information on API status codes and how to handle them, read the docs on errors: https://developers.asana.com/docs/errors"

    }

]

}

As it says, you need to wrap your webhook request call in a ‘data’ JSON object, like this for example - i.e. note how the whole thing is enclosed in data { }

{
  "data": {
    "filters": [
      {
        "action": "changed",
        "fields": [
          "due_at",
          "due_on",
          "dependencies"
        ],
        "resource_subtype": "milestone",
        "resource_type": "task"
      }
    ],
    "resource": "12345",
    "target": "https://example.com/receive-webhook/7654?app_specific_param=app_specific_value"
  }
}