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: Ecdsa(BoundedVec { inner: [2, 70, 15, 214, 20, 136, 180, 147, 173, 203, 60, 62, 14, 19, 89, 95, 104, 52, 200, 217, 65, 26, 254, 193, 250, 163, 190, 124, 2, 22, 9, 59], witness: NonEmpty(()) }), domain_id: DomainId(0) }