Aggregation data store with json fields

[thaingo]

How to configure a column type for json field (either a single json object or an array of objects)?

I am using TEXT column type in Hjson file and it works in this case but returned data includes escape symbol:

{
            "type": "company",
            "id": "0",
            "attributes": {
                "name": null,
                "contacts": "[{\"id\": 1, \"type\": \"WORKER\", \"status\": \"GOOD\"}]",
                "description": "sample description"
            }
        },