If you wish to alter the information about your token as presented on Etherscan, there is a way to do it directly through Etherscan.
The page where you can do that can be found here: https://etherscan.io/tokenupdate?a=XXXXXXXX, where XXXXXXXX stands for your token’s smart contract address.
However, before you can proceed, you would need to prove that you are the owner of the smart contract.
In order to do so, you would need to sign a message and provide Etherscan with the signature hash.
Unfortunately, at the moment this feature is not yet available on Guarda. However, it is possible to accomplish via MyEtherWallet.
Go to https://www.myetherwallet.com/signmsg.html. Paste the message provided to you by Etherscan (as shown on the screenshot above) into the Message box.
You will need to select a way to access your wallet. Please note that it is necessary to access specifically the wallet that you used to pay for the smart contract’s creation. Therefore, you might need to import its private key either directly into MyEtherWallet, or into MetaMask.
After you’ve accessed your wallet, click Sign Message to proceed. Then, copy the hash under “sig”:
Paste it into Etherscan under Message signature hash, and you will be allowed to modify your token’s information.