Android : Unity Facebook SDK score posting failing with FB.API

I am trying to post score on facebook in Unity using facebook SDK. I am using the following code:

FB.Login("email,publish_actions,user_friends", LoginCallback);

var scoreData = 
new Dictionary<string, string>() {{"score", score.ToString()}};

FB.API ("/me/scores", HttpMethod.POST, LogCallback, scoreData);

In LogCallback, I am getting the following error:

10-29 20:16:15.760: E/Unity(15752): You are trying to load data from a www stream which had the following error when downloading.
10-29 20:16:15.760: E/Unity(15752): java.io.FileNotFoundException: https://graph.facebook.com/me/scores

Regarding permissions, I am seeing the following on developers.facebook.com

I dont see

publish_actions permission

there.

If I try to add this permission, it wants me to upload APK and submit for review. Am I missing something? Can someone guide me? Thank you