question

I am trying to write the SetProfilePolicy function but i get the error: Cannot implicitly convert type 'PlayFab.ProfilesModels.EntityPermissionStatement' to 'System.Collections.Generic.List'

Here is my function. May someone tell me what is wrong? Thank you.

     PlayFabProfilesAPI.SetProfilePolicy(
         new SetEntityProfilePolicyRequest()
         {
             Statements = new EntityPermissionStatement(){
                Action = "Read",
                Effect= EffectType.Allow
             },
             Entity = new EntityKey()
             {
                 Id = entityId,
                 Type = entityType
             }
         },
         (result) =>
         {

         },
         (error) =>
         {
             Debug.LogError(error.ErrorMessage);
         }
         );