curl --location --request PUT 'https://api.cash-in.com/v2/updateFinvoiceAccount' \
--header 'X-Api-Key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
"SalesIdentityGuid": "string",
"FinvoiceAccount": "string",
"FinvoiceIntermediator": "string"
}'{
"Message": "string"
}