Ed25519Signature.fromHex constructor
      
      Ed25519Signature.fromHex(
    
- String signatureHexBytes
Constructs an Ed25519 signature from hexadecimal bytes.
Implementation
Ed25519Signature.fromHex(String signatureHexBytes)
    : super.fromHex(
          signatureHexBytes, AdaTransactionConstant.signatureLength);