curl --request POST \
  --url https://api.bmpdigital.moneyp.dev.br/FGTS/CancelarProposta \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'IdempotencyKey: <idempotencykey>' \
  --data '{}'

{
  "Msg": "<string>",
  "HasError": true,
  "Messages": [
    {
      "Code": "<string>",
      "Context": "<string>",
      "Description": "<string>",
      "Field": "<string>"
    }
  ],
  "Boleto": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}