{"code":200,"msg":"","type":"DEFAULT",
"data{"thumbsId":209834,"thumbsKind":"UP","fbObjectId":null,"canPostFB":true,"thumbsupCnt":292,"episodeId":2491},
"errorDetails":null}

I want to get thumbskind value of data. My codes are as follows:

@property(nonatomic, assign) NSInteger code;
@property(nonatomic, copy) NSString *msg;
@property(nonatomic, copy) NSString *type;
@property(nonatomic, copy) NSString *details;
@property(nonatomic, copy) NSDictionary *data;

 NSDictionary *obj = (NSDictionary *)sender;

self.code = [[obj objectForKey:@"code"] intValue];
self.msg = [obj valueForKeyPath:@"msg"];
self.type = [obj valueForKeyPath:@"type"];
self.data = [obj valueForKeyPath:@"data"];
self.details = [obj valueForKeyPath:@"errorDetails"];

I can get code, type, msg and so on.

But I cannot get values of data. How can I get its values like thumbsId, thumbsKind and thumbsupCnt?

data is a dictionary inside dictionary so Try this

@property(nonatomic, copy) NSString * thumbsId;
@property(nonatomic, copy) NSString * thumbsKind;
.
.
.

NSDictionary *obj = (NSDictionary *)sender;
NSDictionary *dataDict = (NSDictionary *)  [obj objectForKey:@"data"]

self. thumbsKind = [dataDict valueForKeyPath:@"thumbsKind"];
self.thumbsId = [dataDict valueForKeyPath:@"thumbsId"];
.
.

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