Adding attack event for rock critter on animation (not fbx) since it's made in Unity

UOP1_Project/Assets/Art/Characters/RockCritter/Animation/Attack_InPlace.anim

     floatParameter: 0
     intParameter: 0
     messageOptions: 0
+  - time: 0.76666665
+    functionName: PlayAttackSound
+    data: 
+    objectReferenceParameter: {fileID: 0}
+    floatParameter: 0
+    intParameter: 0
+    messageOptions: 0
   - time: 0.8
     functionName: AttackPropelTrigger
     data: