jqGrid: Can we configure jqGrid to send customized row id parameter in Ajax post while editing

Question

I am trying to use jqGrid inline editing with RestFull urls as mentioned. Now, when jqGrid posts data to the server, can we change the id query parameter to something else, instead of id.

for example: The server side domain object is say, Customer with customerId as the identity key.

Now, in jqGrid, I set the id in the jsonReader options as

jsonReader : {
        root: "rows",
        page: "page",
        total: "total",
        records: "records",
        repeatitems: false,
        cell: "cell",
        id: "customerId"
    },

Now, when the data is posted to the server, jqGrid posts id:something. I would like to have customerId:something as parameter. Is this possible with some jqGrid Configuration or serializeRowData function is the only option.