Here is example of json string:

{
                "label": "bodyText",
                "description": "Load some stuff here",
                "view": "grid",
                "config": {
                    "items": {
                        "styles": [

                        ],
                        "config": [

                        ],
                        "columns": 8,
                        "templates": [
                            {
                                "name": "1 column layout",
                                "sections": [
                                    {
                                        "grid": 8
                                    }
                                ]
                            }
                        ],
                        "layouts": [
                            {
                                "name": "Celá šířka",
                                "areas": [
                                    {
                                        "grid": 8,
                                        "allowAll": false,
                                        "allowed": [
                                            "rte",
                                            "media",
                                            "macro"
                                        ]
                                    }
                                ],
                                "label": "Celá šířka"
                            },
                            {
                                "name": "2 sloupce",
                                "areas": [
                                    {
                                        "grid": 4,
                                        "allowAll": false,
                                        "allowed": [
                                            "rte",
                                            "media",
                                            "macro"
                                        ]
                                    },
                                    {
                                        "grid": 4,
                                        "allowAll": false,
                                        "allowed": [
                                            "rte",
                                            "media",
                                            "macro"
                                        ]
                                    }
                                ],
                                "label": "2 sloupce"
                            }
                        ]
                    },
                    "startNodeId": -1
                },
                "alias": "l6axgyqh38c",
                "value": {
                    "name": "1 column layout",
                    "sections": [
                        {
                            "grid": 8,
                            "rows": [
                                {
                                    "name": "Celá šířka",
                                    "areas": [
                                        {
                                            "grid": 8,
                                            "allowAll": false,
                                            "allowed": [
                                                "rte",
                                                "media",
                                                "macro"
                                            ],
                                            "hasConfig": false,
                                            "controls": [
                                                {
                                                    "value": "<p>Ahoj</p>",
                                                    "editor": {
                                                        "name": "Rich text editor",
                                                        "alias": "rte",
                                                        "view": "rte",
                                                        "render": null,
                                                        "icon": "icon-article",
                                                        "config": {

                                                        }
                                                    },
                                                    "active": false
                                                }
                                            ],
                                            "active": false
                                        }
                                    ],
                                    "label": "Celá šířka",
                                    "hasConfig": false,
                                    "id": "77464469-6450-7d7b-3a01-dec0e1ad2ead",
                                    "active": false
                                },
                                {
                                    "name": "2 sloupce",
                                    "areas": [
                                        {
                                            "grid": 4,
                                            "allowAll": false,
                                            "allowed": [
                                                "rte",
                                                "media",
                                                "macro"
                                            ],
                                            "hasConfig": false,
                                            "controls": [
                                                {
                                                    "value": {
                                                        "focalPoint": {
                                                            "left": 0.5,
                                                            "top": 0.5
                                                        },
                                                        "id": 21821,
                                                        "image": "/media/1089/graf_vysledky.png"
                                                    },
                                                    "editor": {
                                                        "name": "Image",
                                                        "alias": "media",
                                                        "view": "media",
                                                        "render": null,
                                                        "icon": "icon-picture",
                                                        "config": {

                                                        }
                                                    },
                                                    "active": false
                                                }
                                            ],
                                            "active": false
                                        },
                                        {
                                            "grid": 4,
                                            "allowAll": false,
                                            "allowed": [
                                                "rte",
                                                "media",
                                                "macro"
                                            ],
                                            "hasConfig": false,
                                            "controls": [

                                            ]
                                        }
                                    ],
                                    "label": "2 sloupce",
                                    "hasConfig": false,
                                    "id": "e25af2d4-a855-a7dc-bdab-a80e12a579ea",
                                    "active": false
                                }
                            ]
                        }
                    ]
                }
            }

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