diff --git a/Runtime/Code/Model/GuruSDKModel.cs b/Runtime/Code/Model/GuruSDKModel.cs
index 9b3779c..2f8949e 100644
--- a/Runtime/Code/Model/GuruSDKModel.cs
+++ b/Runtime/Code/Model/GuruSDKModel.cs
@@ -21,19 +21,10 @@ namespace Guru
     {
         //-------------- data ---------------
         
-        [JsonProperty(PropertyName = "uid")] 
         public string uid = "";
-        
-        [JsonProperty(PropertyName = "b_level")] 
-        public int bLevel = 0;
-        
-        [JsonProperty(PropertyName = "b_play")]
-        public int bPlay = 0;
-  
-        [JsonProperty(PropertyName = "no_ads")]
-        public bool noAds = false;
-        
-        [JsonProperty(PropertyName = "purchased")]
+        public int b_level = 0;
+        public int b_play = 0;
+        public bool no_ads = false;
         public List<PurchasedProduct> purchased = new List<PurchasedProduct>(10);
         
         //-------------- data ---------------
@@ -67,9 +58,9 @@ namespace Guru
             GuruSDKSerializedModel model = LoadModel();
             
             _uid = model.uid;
-            _noAds = model.noAds;
-            _bLevel = new BindableProperty<int>(model.bLevel);
-            _bPlay = new BindableProperty<int>(model.bPlay);
+            _noAds = model.no_ads;
+            _bLevel = new BindableProperty<int>(model.b_level);
+            _bPlay = new BindableProperty<int>(model.b_play);
             _purchased = model.purchased;
         }
 
@@ -166,9 +157,9 @@ namespace Guru
             var model = new GuruSDKSerializedModel()
             {
                 uid = _uid,
-                bLevel = _bLevel.Value,
-                bPlay = _bPlay.Value,
-                noAds = _noAds,
+                b_level = _bLevel.Value,
+                b_play = _bPlay.Value,
+                no_ads = _noAds,
                 purchased = _purchased,
             };