respond: signer=blacksandtech.near, request=SignatureRequest { tweak: Tweak([115, 129, 164, 79, 71, 246, 147, 251, 151, 117, 202, 16, 216, 135, 35, 173, 127, 171, 80, 64, 197, 34, 78, 205, 129, 71, 62, 119, 26, 162, 249, 233]), payload: Ecdsa(BoundedVec { inner: [32, 109, 247, 226, 188, 143, 235, 170, 12, 155, 39, 187, 15, 83, 116, 37, 152, 132, 60, 210, 15, 166, 205, 248, 189, 76, 127, 167, 81, 97, 108, 149], witness: NonEmpty(()) }), domain_id: DomainId(0) }