curl --request POST \
--url https://api.example.com/kyb/forms/{companyId}/beneficiaries/{beneficiaryId}/documents/ \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"type": "IDENTITY_DOCUMENT",
"file": "aSDinaTvuI8gbWludGxpZnk=",
"filename": "<string>"
}
'