Edit in JSFiddle

angular.module('formApp', ['formio'])
  .controller('formController', function($scope) {
    $scope.submission = {data: {}};
    $scope.$watch('submission.data', function() {
      jQuery('#jsonview').JSONView($scope.submission);
    }, true);
  });

<div ng-app="formApp" class='row'>
  <div class='col-sm-6 well' ng-controller="formController">
    <formio src="'https://examples.form.io/simple'" submission='submission'></formio>
  </div>
  <div class='col-sm-6'>
    <div id="jsonview"></div>
  </div>
</div>