curl --request POST \
  --url https://api.onstacks.io/v1/webhooks \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "url": "<string>"
}
'

{
  "data": {
    "webhook": {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "url": "<string>",
      "signing_secret_prefix": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "created_by": {
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "email": "jsmith@example.com",
        "display_name": "<string>"
      },
      "disabled_at": "2023-11-07T05:31:56Z"
    },
    "signing_secret": "<string>"
  },
  "error": null,
  "request_id": "<string>"
}