message: Fix key prefix for my_did.
diff: @@ -257,7 +257,7 @@ impl SignusCommandExecutor {
  format!("Can't serialize Key: {}", err.description())))?;
  self.wallet_service.set(wallet_handle, &format!("my_did::{}", my_did.did), &my_did_json)?;
  - self.wallet_service.set(wallet_handle, &format!("my_key::{}", my_key.verkey), &my_key_json)?;
  + self.wallet_service.set(wallet_handle, &format!("key::{}", my_key.verkey), &my_key_json)?;
  Ok((my_did.did, my_did.verkey))
  }
  @@ -296,7 +296,7 @@ impl SignusCommandExecutor {
  format!("Can't serialize Key: {}", err.description())))?;
  self.wallet_service.set(wallet_handle, &format!("my_did_temporary::{}", my_did.did), &did_json)?;
  - self.wallet_service.set(wallet_handle, &format!("my_key::{}", my_key.verkey), &key_json)?;
  + self.wallet_service.set(wallet_handle, &format!("key::{}", my_key.verkey), &key_json)?;
  Ok(my_did.verkey)
  }
  