Function signEvmHash

signEvmHash(options: SignEvmHashOptions): Promise<SignEvmHashResult>
Signs a hash with an EVM account.
Parameters
- options: SignEvmHashOptions
  The options for the signing.
  
  Request parameters for signing a hash with an EVM account.
  - evmAccount: EvmAddress
    The EVM account to sign the hash with.
  - hash: Hex
    The hash to sign.
Returns Promise<SignEvmHashResult>
The result of the signing.
Example
```
const result = await signEvmHash({
  evmAccount: "0x1234...",
  hash: "0xabcd..." // 32-byte hex string to sign
});
```