spray-json JsString quotes on string values

I am using json-spray. It seems that when I attempt to print a parsed JsString value, it includes book-ended quotes on the string.

val x1 = """ {"key1": "value1", "key2": 4} """
println(x1.asJson)
println(x1.asJson.convertTo[Map[String, JsValue]])

Which outputs:

{"key1":"value1","key2":4}
Map(key1 -> "value1", key2 -> 4)

But that means that the string value of key1 is actually quoted since scala displays strings without their quotes. i.e. val k = "value1" outputs: value1 not "value1". Perhaps I am doing something wrong, but the best I could come up with to alleviate this was the following:

val m = x1.asJson.convertTo[Map[String, JsValue]]
val z = m.map({
    case(x,y) => {
        val ny = y.toString( x => x match {
            case v: JsString =>
                v.toString().tail.init
            case v =>
                v.toString()
        } )
        (x,ny)
    }})

println(z)

Which outputs a correctly displayed string:

Map(key1 -> value1, key2 -> 4)

But this solution won't work for recursively nested JSON. Is there a better workaround?