Do not request private key when not needed in encodeBuffer

package.json

 {
   "name": "@hiveio/metamask-snap",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "Hive wallet extension allowing you to sign transactions using keys derived from your Metamask wallet",
   "main": "./dist/bundle.js",
   "files": [

snap.manifest.json

 {
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "Hive wallet extension allowing you to sign transactions using keys derived from your Metamask wallet",
   "proposedName": "Hive Wallet",
   "repository": {
@@ -7,7 +7,7 @@
     "url": "git+https://gitlab.syncad.com/hive/metamask-snap.git"
   },
   "source": {
-    "shasum": "8OiCG07i8jcpwdDezZyvzyBWJftYgWno1hcNL/gUWjc=",
+    "shasum": "nuk2Nauuy9DjK6k1141Yyd2Uh9dRtBlGrjSMEDGw92c=",
     "location": {
       "npm": {
         "filePath": "dist/bundle.js",

src/snap/encodeBuffer.ts

 import type { KeyIndex } from "../rpc";
 import { getWax } from "../hive/wax";
-import { importPrivateKeyToWallet } from "../utils/key-management";
+import { getPublicKeyWifFromKeyIndex, importPrivateKeyToWallet } from "../utils/key-management";
 import { getTempWallet } from "../hive/beekeeper";
 import { ConfirmBufferSign } from "./dialogs/ConfirmBufferSign";
 
@@ -21,7 +21,7 @@ export const encodeBuffer = async (origin: string, buffer: string, firstKey: Key
     if(typeof secondKey === "string")
       publicKeySecondKey = secondKey;
     else if (secondKey)
-      publicKeySecondKey = await importPrivateKeyToWallet(wallet, secondKey);
+      publicKeySecondKey = await getPublicKeyWifFromKeyIndex(secondKey);
 
     const response = wax.encrypt(wallet, buffer, publicKeyFirstKey, publicKeySecondKey);