ServiceAuthorizationManager 実装に (unity を使用して) リポジトリを挿入したいと思います。出来ますか?
 public class APIKeyAuthorization : ServiceAuthorizationManager
    {
        private readonly IKeysService _keysService;
        public APIKeyAuthorization(KeysService keysService)
        {
            _keysService = keysService;
        }
        protected override bool CheckAccessCore(OperationContext operationContext)
        {
            //var _keysService = new KeysService();
            string key = GetAPIKey(operationContext);
            string endpoint = GetEndpoint(operationContext); //ip address
            if (_keysService.IsValidKey(key, endpoint))
            {
                return true;
            }
            else
            {
                // Send back an HTML reply
                CreateErrorReply(operationContext, key);
                return false;
            }
        }