virtualusers Contract Overview Actions (27) Structs (40) Tables (10) ABI Overview checksign Action parameter in checksign { "name": "checksign", "base": "", "fields": [ { "name": "data", "type": "uint64" }, { "name": "user", "type": "uint64" }, { "name": "key", "type": "public_key" }, { "name": "sig", "type": "signature" } ] }