diff --git a/chan.go b/chan.go
index ebe1e46..1a5e3c2 100644
--- a/chan.go
+++ b/chan.go
@@ -141,7 +141,7 @@ func (c *Channel) SendPostRawMsg(body string) error {
 // push notification server Public Key.
 func (c *Channel) PNBroadcastAvailabilityRequest() {
 	format := `["%s",["%s"]]`
-	msg := fmt.Sprintf(format, PNBroadcastAvailabilityType, c.conn.address)
+	msg := fmt.Sprintf(format, PNBroadcastAvailabilityType, c.conn.pubkey)
 	c.SendPostRawMsg(msg)
 }
 
diff --git a/sdk.go b/sdk.go
index 01ddf42..599809e 100644
--- a/sdk.go
+++ b/sdk.go
@@ -10,6 +10,8 @@ import (
 type SDK struct {
 	RPCClient  RPCClient
 	address    string
+	pubkey     string
+	mnemonic   string
 	userName   string
 	channels   []*Channel
 	minimumPoW float64
@@ -47,6 +49,9 @@ func (c *SDK) Signup(pwd string) (addr string, pubkey string, mnemonic string, e
 	if err != nil {
 		return "", "", "", err
 	}
+	c.address = res.Result.Address
+	c.pubkey = res.Result.Pubkey
+	c.mnemonic = res.Result.Mnemonic
 
 	return res.Result.Address, res.Result.Pubkey, res.Result.Mnemonic, err
 }