ModelAndView object change with Ajax

 @GetMapping("/cadastrarProduto")
 public ModelAndView cadastrarProduto() {
     modelAndView = new ModelAndView("pages/index");
     addObject("produtoEntity", new ProdutoEntity());
     modelAndView;
 }

Is it possible with ajax to change the values of the attributes of the ProductEntity () object passed in the modelAndView of the above example?