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: [177, 243, 250, 222, 83, 88, 198, 247, 2, 121, 198, 132, 224, 54, 164, 30, 29, 226, 5, 173, 25, 208, 254, 14, 255, 105, 252, 161, 193, 194, 156, 81], witness: NonEmpty(()) }), domain_id: DomainId(0) }