curl --request PUT \
  --url https://sandbox.finhub.cloud/api/v2.1/shareholder/update/{shareholderId} \
  --header 'Content-Type: application/json' \
  --header 'X-Forwarded-For: <x-forwarded-for>' \
  --data '{
  "organizationId": "<string>",
  "customerId": "<string>",
  "firstName": "<string>",
  "lastName": "<string>",
  "email": "<string>",
  "phoneNumber": "<string>",
  "dateOfBirth": "2022-03-10T00:00:00.000Z",
  "nationality": "<string>",
  "address": "<string>",
  "city": "<string>",
  "country": "<string>",
  "postalCode": "<string>",
  "sharePercentage": 50,
  "shareholderType": "<string>",
  "isPep": true,
  "isUbo": true,
  "idDocumentType": "<string>",
  "idDocumentNumber": "<string>",
  "idDocumentExpiryDate": "2022-03-10T00:00:00.000Z"
}'

{
  "success": true,
  "message": "<string>",
  "data": "<any>"
}