Ajax to Controller bind model

Guys, good afternoon,
I'm working on an application in which it makes javascript ajax requests to the backend
An error occurs when I send a structure this way:

" const OFManutencaoViewModel = {
Justification: Justification,
RequesterJustification: idOFJustificationRequestor,
EmailsJustifications: idListaOFJustificationEmails,
OFBecalhoViewModel: oFCabecalhoViewModel
}
"

Properly populated according to the payload (attached image) below:

My model is structured like this:

public class OFManutencaoViewModel
{

public OFBecalhoViewModel OFBecalhoViewModel { get; set; }

public string Justification { get; set; }

public string RequesterJustification { get; set;}

public string EmailsJustifications { get; set; }
}

When making the call it hits the controller but with null values

Method structure (image attached):

I've already checked property by property and everything is correct.

Could someone give me some help