respond: signer=blacksandtech.near, request=SignatureRequest { tweak: Tweak([91, 133, 61, 97, 3, 249, 82, 250, 113, 33, 215, 124, 147, 66, 208, 253, 114, 214, 210, 140, 17, 119, 243, 225, 191, 146, 178, 27, 33, 186, 115, 221]), payload: Ecdsa(BoundedVec { inner: [41, 84, 46, 140, 210, 33, 4, 70, 13, 85, 65, 26, 142, 0, 172, 84, 138, 245, 183, 226, 133, 157, 172, 51, 100, 137, 92, 176, 62, 22, 250, 173], witness: NonEmpty(()) }), domain_id: DomainId(0) }