curl --request GET \
  --url https://{instance}-api.private.fin.ag/v3/{customerId}/BankingServices/GetAccountsSummaryAsync/{requestId} \
  --header 'Content-Type: <content-type>'

{
  "HttpStatusCode": 123,
  "Accounts": [
    {
      "EftEligibleRatio": 123,
      "ETransferEligibleRatio": 123,
      "Title": "<string>",
      "AccountNumber": "<string>",
      "LastFourDigits": "<string>",
      "Balance": {
        "Available": 123,
        "Current": 123,
        "Limit": "<string>"
      },
      "Category": "<string>",
      "Type": "<string>",
      "Currency": "<string>",
      "Holder": {
        "Name": "<string>",
        "Address": {
          "CivicAddress": "<string>",
          "City": "<string>",
          "Province": "<string>",
          "PostalCode": "<string>",
          "POBox": "<string>",
          "Country": "<string>"
        },
        "Email": "<string>",
        "PhoneNumber": "<string>"
      },
      "Id": "<string>"
    }
  ],
  "Login": {
    "Username": "<string>",
    "IsScheduledRefresh": true,
    "LastRefresh": "<string>",
    "Type": "<string>",
    "Id": "<string>"
  },
  "Institution": "<string>",
  "RequestId": "<string>"
}