getJSON where parent field is not a field name

I've got data coming in to Creator from Zoho People in JSON format and want to extract specific values. However each record is identified by the individual's unique ID. For Example:

{
    "response": {
        "result": [
            {
                "7552000001012445": [
                    {
                        "EmployeeID": "1111",
                        "LastName": "Simpson",
                        "FirstName": "Homer"
                    }
                ]
            },
            {
                "7552000001010102": [
                    {
                        "EmployeeID": "2222",
                        "LastName": "Simpson",
                        "FirstName": "Marge"
                    }
                ]
            },
            {
                "7552000000781045": [
                    {
                        "EmployeeID": "333",
                        "LastName": "Simpson",
                        "FirstName": "Bart"
                    }
                ]
            },
            {
                "7552000000684973": [
                    {
                        "EmployeeID": "4444",
                        "LastName": "Simpson",
                        "FirstName": "Lisa"
                    }
                ]
            }
        ],
        "message": "Data fetched successfully",
        "uri": "/api/forms/employee/getRecords",
        "status": 0
    }
}