How to set a wiremock stub when there is a json is required in the query param

I am new to wiremock , I am trying to setup a stub for a get request which looks like /details?employee-info={“name”:”rahul”}

I tried below stub but got exception

Stub:

{ "request": { "method": "GET", "urlPathPattern": "/details", "queryParameters": { "query-param": { "equalTo": "{"\name":"rahul"}"

        }
    },
    "response": {
        "status": 200,
        "bodyFileName": "emplyeeDetails/rahul",
        "headers": {
            "Content-Type": "application/json"
        }
    }
}

}

Exception: java.lang.IllegalArgumentException: Invalid character found in the request target [/details?employee-info={%22name%22:%22rahul%22}].

Please help, many thanks in advance.