respond: signer=mpc-lgns.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: Eddsa(BoundedVec { inner: [224, 191, 233, 215, 137, 28, 182, 31, 35, 162, 122, 58, 154, 142, 232, 207, 213, 194, 20, 153, 16, 252, 240, 27, 37, 40, 17, 26, 214, 71, 186, 74], witness: NonEmpty(()) }), domain_id: DomainId(1) }