diff --git a/server/jccommon/types.go b/server/jccommon/types.go
index f1cee747..9a5ac507 100644
--- a/server/jccommon/types.go
+++ b/server/jccommon/types.go
@@ -76,3 +76,38 @@ type NftStacking struct {
 	ItemId int32
 	Quality int32
 }
+
+type NftStackingPo struct {
+	TokenId string `json:"t"`
+	ItemId int32 `json:"i"`
+	Quality int32 `json:"q"`
+}
+
+type ContractStackingPo struct {
+	NetId int32 `json:"net_id"`
+	ContractAddress string `json:"contract_address"`
+	TokenType int32 `json:"token_type"`
+	Nfts []*NftStackingPo `json:"nfts"`
+}
+
+type UserStackingPo struct {
+	AccountAddress string `json:"account_address"`
+	Contracts []*ContractStackingPo `json:"contracts"`
+}
+
+func NewNftStackingPo() *NftStackingPo {
+	p := new(NftStackingPo)
+	return p
+}
+
+func NewContractStackingPo() *ContractStackingPo {
+	p := new(ContractStackingPo)
+	p.Nfts = []*NftStackingPo{}
+	return p
+}
+
+func NewUserStackingPo() *UserStackingPo {
+	p := new(UserStackingPo)
+	p.Contracts = []*ContractStackingPo{}
+	return p
+}