vsp.go

// new vspd request
		if req.vspPubkey == "" {
			return nil, status.Errorf(codes.InvalidArgument, "vsp pubkey can not be null")
		}
		if req.vspHost == "" {
			return nil, status.Errorf(codes.InvalidArgument, "vsp host can not be null")
		}

	vspServer, err := vsp.New(req.vspHost, req.vspPubkey, req.Account, req.Account, nil, s.wallet, params)