How to database insert JSON?

{
    "name": "George",
    "country": "NL"
}

How can I literally Database Insert such JSON without actually going through the traditional Database Insert dialog and selecting the fields? It’s not feasible to manually build the Database Insert as the columns may vary over time and I’d rather just throw in the JSON representation. We’re talking about a lot of columns here (+50) and growing, so you can guess it’s not going to be easy to deal with changing Database Inserts to add/edit new fields in the middle of the already existing 50 columns

It seems it’s possible to do so for a subtable, but what about for a main table?