Response from the SDK for sign request. Receive plaintext response from network.
For ECDSA: Recovery id, either 0, or 1 For EdDSA: unused
For ECDSA: Hexstring of length 128 bytes, in a form: r || s. The r and s are 64 bytes long. For EdDSA: RFC 8032 64-byte signature.
Response from the SDK for sign request. Receive plaintext response from network.