**Describe the unexpected behaviour**

An error is received when inserting to a table with JSON column type:

```
Received exception from server (version 22.3.3):
Code: 36. DB::Exception: Received from localhost:9000. DB::Exception: Explicitly specified names of tuple elements cannot start with digit. (BAD_ARGUMENTS)
```

**How to reproduce**
```sql 
set allow_experimental_object_type=true;
CREATE TABLE json_test (data JSON) ENGINE=MergeTree PRIMARY KEY tuple();
INSERT INTO json_test (data) VALUES('{ "12344": true }');
```
result: 
```
INSERT INTO json_test (data) FORMAT Values

1 rows in set. Elapsed: 0.002 sec. 

Received exception from server (version 22.3.3):
Code: 36. DB::Exception: Received from localhost:9000. DB::Exception: Explicitly specified names of tuple elements cannot start with digit. (BAD_ARGUMENTS)
```

* Which ClickHouse server version to use
22.3.3.44


**Expected behavior**
It must be possible to insert such JSON to the table since its a valid JSON:

```
select isValidJSON('{ "12344": true }');

┌─isValidJSON('{ "12344": true }')─┐
│                                1 │
└──────────────────────────────────┘
```

{
    return Tuple(collections::map<Tuple>(elems, [] (const DataTypePtr & elem) { return elem->getDefault(); }));
}
void DataTypeTuple::insertDefaultInto(IColumn & column) const
{
    addElementSafe(elems, column, [&]
    {
        for (const auto & i : collections::range(0, elems.size()))
            elems[i]->insertDefaultInto(extractElementColumn(column, i));
    });
}
bool DataTypeTuple::equals(const IDataType & rhs) const
{
    if (typeid(rhs) != typeid(*this))
        return false;
    const DataTypeTuple & rhs_tuple = static_cast<const DataTypeTuple &>(rhs);
    size_t size = elems.size();
    if (size != rhs_tuple.elems.size())
        return false;
    for (size_t i = 0; i < size; ++i)
        if (!elems[i]->equals(*rhs_tuple.elems[i]) || names[i] != rhs_tuple.names[i])
            return false;
    return true;
}
size_t DataTypeTuple::getPositionByName(const String & name) const