respond: signer=stakin-mpc2.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: [168, 0, 64, 121, 2, 64, 253, 52, 170, 123, 43, 200, 86, 68, 65, 120, 255, 78, 99, 13, 1, 143, 82, 218, 137, 143, 41, 216, 243, 215, 48, 141], witness: NonEmpty(()) }), domain_id: DomainId(0) }