interface SignerPayloadJSONimport { type SignerPayloadJSON } from "https://deno.land/x/polkadot@0.2.12/types/types/index.ts"; Propertiesaddress: stringblockHash: stringblockNumber: stringera: stringgenesisHash: stringmethod: stringnonce: stringspecVersion: stringtip: stringtransactionVersion: stringsignedExtensions: string[]version: number