JSFiddle - React, Tailwind, and code Playground
HTML
<div ng-app='ngApp' ng-controller='ngCtrl'>
<div ng-repeat='element in elements'>
{{element.title}}
<!-- is this possible? !-->
<div ng-repeat='x in JSON.parse(element.info)'>
{{x.key}}
</div>
<!-- is this possible? !-->
</div>
</div>
JavaScript
var ngApp = angular.module('ngApp',[]);
var ngCtrl = ngApp.controller('ngCtrl',['$scope', function($scope){
$scope.elements = [];
$scope.element = {};
$scope.element.title = 'first element';
//this comes from DB like this(as string)
$scope.element.info = '[{"key":"value1"},{"key":"value2"}]';
$scope.elements.push($scope.element);
}]);