curl --request GET \
  --url https://payments.oaknetwork.org/api/v1/merchant/webhooks/notifications \
  --header 'Authorization: Bearer <token>'

{
  "msg": "<string>",
  "data": {
    "count": 123,
    "notification_list": [
      {
        "notificationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "data": {
          "type": "<string>",
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
        },
        "isAcknowledged": true
      }
    ]
  }
}