respond: signer=everstake-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: [65, 168, 93, 58, 78, 89, 42, 210, 2, 160, 26, 64, 58, 43, 26, 202, 80, 205, 25, 38, 138, 165, 33, 57, 198, 131, 249, 177, 66, 66, 249, 202], witness: NonEmpty(()) }), domain_id: DomainId(0) }