{
    "1": {
        "method": "addColumn",
        "params": [
            "core_validating",
            {
                "name": "email_sent",
                "type": "INT",
                "length": 10,
                "decimals": null,
                "values": null,
                "allow_null": true,
                "default": null,
                "comment": "Timestamp of when the confirmation email was last sent",
                "unsigned": false,
                "zerofill": false,
                "auto_increment": false,
                "binary": false
            }
        ]
    }
}