我通过 Facebook 图形 API 以 JSON 格式获取以下数据。但是，它看起来像是无效的 JSON 格式。JSON 格式化程序说错误在第 1 行。这个错误是什么？
{
data = (
{
application = {
id = 2409997254;
name = Likes;
};
"created_time" = "2013-05-05T07:51:41+0000";
from = {
id = 100000347121257;
name = "Rishab Gulati";
};
id = "notif_746853089_182660043";
link = "http://www.facebook.com/photo.php?fbid=10151457234013090&set=a.427064503089.223857.746853089&type=1";
object = "<null>";
title = "Rishab Gulati, Deepika Gurnani and 2 other people like your photo.";
to = {
id = 746853089;
name = "Ashish Agarwal";
};
unread = 1;
"updated_time" = "2013-05-05T10:48:33+0000";
}
);
paging = {
next = "https://graph.facebook.com/746853089/notifications?format=json&access_token=**xxxxxxxxxx";
previous = "https://graph.facebook.com/746853089/notifications?format=json&access_token=**SNIP**&limit=5000&since=1367740301&__paging_token=notif_746853089_182660043&__previous=1";
};
summary = {
"unseen_count" = 1;
"updated_time" = "2013-05-05T10:48:33+0000";
};
}