如何添加名称已作为另一个属性存在的JSON项？

I'm trying create this:

我正在尝试创建这个：

var a = {
"requestM" : {
    "task" : "list",
    "listRequest" : {
        "checkedEntryType" : "GLOBAL",
        "targetList" : {
            "maxResult" : "2",
            "status" : "OPEN",
            "entryType" : "CALL"
        },
        "targetList" : {
            "maxResult" : "3",
            "status" : "CLOSED",
            "entryType" : "CALL"
        },
        "targetList" : {
            "maxResult" : "2",
            "status" : "OPEN",
            "entryType" : "TODO"
        },
        "targetList" : {
            "maxResult" : "2",
            "status" : "CLOSED",
            "entryType" : "TODO"
        }
    }
}
var a =