curl --request POST \
  --url https://sandbox.finhub.cloud/api/v2.1/fintrans/{accountId}/transfers/types.purchase \
  --header 'Content-Type: application/json' \
  --data '
{
  "sourceAccount": {
    "walletId": "<string>",
    "iban": "<string>",
    "name": "<string>"
  },
  "destinationAccount": {
    "walletId": "<string>",
    "iban": "<string>",
    "name": "<string>"
  },
  "target": {
    "walletId": "<string>",
    "iban": "<string>",
    "name": "<string>"
  },
  "amount": {
    "value": "<string>",
    "scale": 123,
    "currency": "<string>"
  },
  "beneficiaryId": "<string>",
  "beneficiaryIban": "<string>",
  "beneficiaryName": "<string>",
  "reference": "<string>",
  "description": "<string>",
  "currency": "<string>",
  "type": "<string>",
  "consent": {
    "consentReference": "<string>"
  },
  "merchantDetails": {
    "merchantId": "<string>",
    "merchantName": "<string>",
    "merchantCategory": "<string>"
  },
  "customerDetails": {
    "customerId": "<string>",
    "customerName": "<string>",
    "customerEmail": "<string>"
  },
  "assetId": "<string>",
  "assetSubUnitId": "<string>"
}
'