curl --request POST \
  --url https://app.mlm-platform.com/api/v1/events/purchase \
  --header 'Content-Type: application/json' \
  --header 'x-tenant-api-key: <api-key>' \
  --data '
{
  "user_id": "550e8400-e29b-41d4-a716-446655440000",
  "amount": 99.99,
  "currency": "USD"
}
'

{
  "message": "<string>",
  "ledgerPayload": {
    "tenantId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "originalAmount": 123,
    "originalCurrency": "<string>",
    "baseCurrency": "<string>",
    "convertedAmount": 123,
    "fxRate": 123,
    "metadata": {},
    "commissionsGenerated": 1
  },
  "idempotency_key": "<string>"
}