Signing an Ethereum transaction requires you to construct a transaction object using Totle’s API response and sign the transaction with the wallets private key. Everything you need to construct this object is given to you in the API response.
Here’s where you can find Totle’s documentation related to signing an Ethereum transaction.
In the next release of our backend, the API response will include a transaction payload for you. This means all you will need is your private key to the public key included in the API request.