curl --request POST \
  --url https://api.avenia.io:8443/v2/v2/account/payment-session/preferences \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "externalId": "<string>",
  "paymentOptions": [
    {
      "inputCurrency": "<string>",
      "inputPaymentMethod": "<string>",
      "outputCurrency": "<string>",
      "outputPaymentMethod": "<string>"
    }
  ],
  "outputCurrency": "<string>",
  "linkExpirationValue": 123,
  "linkExpirationUnit": "<string>",
  "appearance": {
    "primaryColor": "<string>",
    "logoUrl": "<string>"
  }
}
'

{
  "id": "<string>"
}