Is this possible to update the object received from webhook of Sitecore

Question

I tried to get the webhook JSON object on the event item:saved (like below),

{
  "EventName": "item:added",
  "Item": {
    "Language": "en",
    "Version": 1,
    "Id": "4c3a401e-8b78-440a-bf88-736a71ce8e5a",
    "Name": "New sample item",
    "ParentId": "8fb31904-1bbc-463c-821b-c7c1a87bf13e",
    "TemplateId": "0133f52d-271f-4217-b1cd-04342e3457eb",
    "MasterId": "00000000-0000-0000-0000-000000000000",
    "SharedFields": [
      {
        "Id": "a4f985d9-98b3-4b52-aaaf-4344f6e747c6",
        "Value": "{88AD1387-D4DA-489D-BB4B-45540917E7ED}"
      }
    ],
    "UnversionedFields": [],
    "VersionedFields": [...]
  },
  "WebhookItemId": "95398c44-f232-41a8-b947-8aefec4ce6eb",
  "WebhookItemName": "Sample Webhook Event Handler"
}

but now I want to edit that JSON, e.g., I want to add one more property in that like ItemPath or any custom property of my own logic then how can we implement it?