Update example

Author: avive

examples.md

@@ -2,7 +2,7 @@
 Examples below assume you are running a locan full node with the default provided reference config file.
 
 ## Working with Binary Data
-Binary data submitted via grpcurl to the api must be a base64 string encoded in the following way: `base64(Int(hex_string).toBigEndianBytes()`.
+Binary data submitted via grpcurl to the api must be a base64 string encoded in the following way: `base64(hex.decode(hex_string))`.
 So for example for address represted as a hex string of `0x8C99365feE31f1cEDB056A35D7f561584679ea3c`, the base64 encoding is `jJk2X+4x8c7bBWo11/VhWEZ56jw='`
 
 ## Account Balance