diff --git a/node-registrar/client/account.go b/node-registrar/client/account.go
index 808fc52..8ffd862 100644
--- a/node-registrar/client/account.go
+++ b/node-registrar/client/account.go
@@ -38,6 +38,7 @@ func (c *RegistrarClient) UpdateAccount(opts ...UpdateAccountOpts) (err error) {
 type accountCfg struct {
 	relays    []string
 	rmbEncKey string
+	publicKey string
 }
 
 type (
@@ -58,6 +59,12 @@ func UpdateAccountWithRMBEncKey(rmbEncKey string) UpdateAccountOpts {
 	}
 }
 
+func UpdateAccountWithPublicKey(publicKey string) UpdateAccountOpts {
+	return func(n *accountCfg) {
+		n.publicKey = publicKey
+	}
+}
+
 // EnsureAccount ensures that an account is created with specific seed/mnemonic.
 func (c *RegistrarClient) EnsureAccount(relays []string, rmbEncKey string) (account Account, err error) {
 	return c.ensureAccount(relays, rmbEncKey)
@@ -276,6 +283,7 @@ func parseUpdateAccountOpts(opts []UpdateAccountOpts) map[string]any {
 	cfg := accountCfg{
 		rmbEncKey: "",
 		relays:    []string{},
+		publicKey: "",
 	}
 
 	for _, opt := range opts {
@@ -292,5 +300,9 @@ func parseUpdateAccountOpts(opts []UpdateAccountOpts) map[string]any {
 		data["rmb_enc_key"] = cfg.rmbEncKey
 	}
 
+	if len(cfg.publicKey) != 0 {
+		data["public_key"] = cfg.publicKey
+	}
+
 	return data
 }
diff --git a/node-registrar/pkg/db/accounts.go b/node-registrar/pkg/db/accounts.go
index c78dba7..1545307 100644
--- a/node-registrar/pkg/db/accounts.go
+++ b/node-registrar/pkg/db/accounts.go
@@ -17,11 +17,19 @@ func (db *Database) CreateAccount(account *Account) error {
 }
 
 // UpdateAccount updates an account's relays and RMB encryption key
-func (db *Database) UpdateAccount(twinID uint64, relays pq.StringArray, rmbEncKey string) error {
-	result := db.gormDB.Model(&Account{}).Where("twin_id = ?", twinID).Updates(map[string]interface{}{
-		"relays":      relays,
-		"rmb_enc_key": rmbEncKey,
-	})
+func (db *Database) UpdateAccount(twinID uint64, relays pq.StringArray, rmbEncKey string, publicKey string) error {
+	update := map[string]interface{}{}
+	if len(relays) != 0 {
+		update["relays"] = relays
+	}
+	if rmbEncKey != "" {
+		update["rmb_enc_key"] = rmbEncKey
+	}
+	if publicKey != "" {
+		update["public_key"] = publicKey
+	}
+
+	result := db.gormDB.Model(&Account{}).Where("twin_id = ?", twinID).Updates(update)
 	if result.Error != nil {
 		return result.Error
 	}
diff --git a/node-registrar/pkg/server/handlers.go b/node-registrar/pkg/server/handlers.go
index d4cc2e2..f49daea 100644
--- a/node-registrar/pkg/server/handlers.go
+++ b/node-registrar/pkg/server/handlers.go
@@ -582,6 +582,7 @@ func verifySignature(publicKey, chalange, signature []byte) (bool, error) {
 type UpdateAccountRequest struct {
 	Relays    pq.StringArray `json:"relays"`
 	RMBEncKey string         `json:"rmb_enc_key"`
+	PubKey    string         `json:"public_key,omitempty"`
 }
 
 // updateAccountHandler updates an account's relays and RMB encryption key
@@ -616,7 +617,12 @@ func (s *Server) updateAccountHandler(c *gin.Context) {
 		return
 	}
 
-	err = s.db.UpdateAccount(twinID, req.Relays, req.RMBEncKey)
+	if req.PubKey != "" && isValidPublicKey(req.PubKey) {
+		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "invalid Public Key format"})
+		return
+	}
+
+	err = s.db.UpdateAccount(twinID, req.Relays, req.RMBEncKey, req.PubKey)
 	if err != nil {
 		if errors.Is(err, db.ErrRecordNotFound) {
 			c.AbortWithStatusJSON(http.StatusNotFound, gin.H{"error": "account not found"})
@@ -625,7 +631,6 @@ func (s *Server) updateAccountHandler(c *gin.Context) {
 		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "failed to update account"})
 		return
 	}
-
 	c.JSON(http.StatusOK, gin.H{"message": "account updated successfully"})
 }