Function signEvmMessage

signEvmMessage(options: SignEvmMessageOptions): Promise<SignEvmHashResult>
Signs an EVM message.
Parameters
- options: SignEvmMessageOptions
  The options for the signing.
  
  Request parameters for signing an EVM message.
  - evmAccount: EvmAddress
    The EVM account to sign the message with.
  - message: string
    The message to sign.
Returns Promise<SignEvmHashResult>
The result of the signing.
Example
```
const user = await getCurrentUser();
const evmAccount = user?.evmAccounts[0];

const result = await signEvmMessage({
  evmAccount,
  message: "Hello World" // Message to sign
});
```