curl --request GET \
  --url https://api.topsort.com/public/v1/billing-service/vendors/{external-vendor-id}/account-activity \
  --header 'Authorization: Bearer <token>'

{
  "currencyCode": "<string>",
  "lines": [
    {
      "amount": 123,
      "createdAt": "2023-11-07T05:31:56Z",
      "description": "<string>",
      "reasonType": "<string>"
    }
  ]
}