diff --git a/app/src/main/java/com/example/android_sdk/account.kt b/app/src/main/java/com/example/android_sdk/account.kt
index e4ee588..7d9b4c6 100644
--- a/app/src/main/java/com/example/android_sdk/account.kt
+++ b/app/src/main/java/com/example/android_sdk/account.kt
@@ -89,14 +89,14 @@ suspend fun account() = runBlocking<Unit> {
 //            }
 //         */
 //
-        // Find account info asynchronously to network & account
-        val getAccountInfo = async { getAccountInfoAsync("0x90d86020c8241326f0950795a3a8db6f593a321a") }.await()
-        println(
-            """
-            getAccountInfo:
-            ${getAccountInfo}
-            """.trimIndent()
-        )
+//        // Find account info asynchronously to network & account
+//        val getAccountInfo = async { getAccountInfoAsync("0x90d86020c8241326f0950795a3a8db6f593a321a") }.await()
+//        println(
+//            """
+//            getAccountInfo:
+//            ${getAccountInfo}
+//            """.trimIndent()
+//        )
 //        /**
 //         * getAccountInfo :
 //        {
diff --git a/app/src/main/java/com/example/android_sdk/nft.kt b/app/src/main/java/com/example/android_sdk/nft.kt
index e81236b..3fa0764 100644
--- a/app/src/main/java/com/example/android_sdk/nft.kt
+++ b/app/src/main/java/com/example/android_sdk/nft.kt
@@ -747,7 +747,9 @@ suspend fun sendNFT721TransactionAsync(
 
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
 
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
@@ -837,7 +839,9 @@ suspend fun sendNFT1155TransactionAsync(
     }
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
             Credentials.create(privateKey)
@@ -931,7 +935,9 @@ suspend fun sendNFT721BatchTransactionAsync(
     }
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
             Credentials.create(privateKey)
@@ -1036,7 +1042,9 @@ suspend fun sendNFT1155BatchTransactionAsync(
     }
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
             Credentials.create(privateKey)
@@ -1154,7 +1162,9 @@ suspend fun deployErc721Async(
 
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
             Credentials.create(privateKey)
@@ -1263,7 +1273,9 @@ suspend fun mintErc721Async(
 
     try {
         val getAddressInfo = getAccountInfoAsync(fromAddress)
-        val privateKey = getAddressInfo.getString("private")
+        val result = getAddressInfo.getJSONArray("value")
+        val value = result.getJSONObject(0)
+        val privateKey = value.getString("private")
         val web3j = Web3j.build(HttpService(rpcUrl))
         val credentials =
             Credentials.create(privateKey)
@@ -1582,4 +1594,4 @@ suspend fun mintErc721Async(
 //
 //fun decimalToHexString(decimal: Int): String {
 //    return Integer.toHexString(decimal)
-//}
\ No newline at end of file
+//}