diff --git a/server/backtask/service/nftutils.go b/server/backtask/service/nftutils.go
index 6186a8e4..710875a4 100644
--- a/server/backtask/service/nftutils.go
+++ b/server/backtask/service/nftutils.go
@@ -149,7 +149,7 @@ func NftExists(netId int32, contractAddress string, tokenId string) bool {
 }
 
 func NftUpdateLock(netId int32, contractAddress string, tokenId string,
-	lockIdx int64, lockAddress string) bool {
+	lockIdx int64, lockAddress string, lockSender string) bool {
 	nowTime := f5.GetApp().GetRealSeconds()
 	result := false
 	f5.GetGoStyleDb().UpsertEx(
@@ -163,6 +163,7 @@ func NftUpdateLock(netId int32, contractAddress string, tokenId string,
 		[][]string {
 			{"last_lock_idx", q5.ToString(lockIdx)},
 			{"last_lock_address", lockAddress},
+			{"last_lock_sender", lockSender},
 			{"last_lock_time", q5.ToString(nowTime)},
 		},
 		[][]string {},
diff --git a/server/backtask/task/nftlock.go b/server/backtask/task/nftlock.go
index 3a1af0f9..580a29bf 100644
--- a/server/backtask/task/nftlock.go
+++ b/server/backtask/task/nftlock.go
@@ -66,6 +66,7 @@ func (this* nftLock) repair(ds *f5.DataSet) bool {
 	netId := q5.ToInt32(ds.GetByName("net_id"))
 	idx := q5.ToInt64(ds.GetByName("idx"))
 	lockTo := ds.GetByName("lock_to")
+	lockSender := ds.GetByName("lock_sender")
 	if nftSyncStatus == 0 && lockTo != "" {
 		p := new(lockReturnValues)
 		if q5.DecodeJson(ds.GetByName("return_values"), p) == nil {
@@ -73,7 +74,7 @@ func (this* nftLock) repair(ds *f5.DataSet) bool {
 				contractAddress := strings.ToLower(p.Nft)
 				tokenId := val
 				if service.NftExists(netId, contractAddress, tokenId) {
-					service.NftUpdateLock(netId, contractAddress, tokenId, idx, lockTo)
+					service.NftUpdateLock(netId, contractAddress, tokenId, idx, lockTo, lockSender)
 				}
 			}
 		}
diff --git a/server/marketserver/api/v1/nft/nft.go b/server/marketserver/api/v1/nft/nft.go
index 49b425e1..465aab9b 100644
--- a/server/marketserver/api/v1/nft/nft.go
+++ b/server/marketserver/api/v1/nft/nft.go
@@ -18,7 +18,7 @@ func (this *NftApi) Unlock(c *gin.Context) {
 	reqJson := struct {
 		NetId interface{} `json:"net_id"`
 		ContractAddress string `json:"contract_address"`
-		To string `json:"to"`
+		//To string `json:"to"`
 		Tokens []struct {
 			TokenId string `json:"token_id"`
 		} `json:"tokens"`
@@ -34,10 +34,11 @@ func (this *NftApi) Unlock(c *gin.Context) {
 		f5.RspErr(c, 1, "contract_address params error")
 		return
 	}
+	/*
 	if reqJson.To == "" {
 		f5.RspErr(c, 1, "to params error")
 		return
-	}
+	}*/
 	if len(reqJson.Tokens) != 1 {
 		f5.RspErr(c, 1, "tokens params error")
 		return
@@ -68,7 +69,7 @@ func (this *NftApi) Unlock(c *gin.Context) {
 					"account_address": accountAddress,
 					"net_id": ds.GetByName("net_id"),
 					"nft_address": ds.GetByName("contract_address"),
-					"to_address": reqJson.To,
+					//"to_address": reqJson.To,
 					"token_ids": ds.GetByName("token_id"),
 				}
 				rspObj := &struct {