respond: signer=hashkeycloud_mpc.testnet, request=SignatureRequest { tweak: Tweak([219, 168, 68, 128, 219, 92, 120, 51, 228, 10, 113, 57, 202, 242, 53, 98, 58, 18, 212, 95, 163, 11, 30, 1, 27, 145, 164, 100, 243, 254, 131, 159]), payload: Ecdsa(BoundedVec { inner: [34, 131, 104, 233, 36, 234, 223, 192, 136, 141, 36, 232, 234, 169, 192, 229, 175, 102, 71, 27, 23, 231, 82, 52, 161, 174, 248, 144, 22, 28, 174, 212], witness: NonEmpty(()) }), domain_id: DomainId(0) }