unbox.nft 合约 概览 操作 (20) 结构体 (28) 表 (7) 应用二进制接口 结构体 (28) unbox unbox中的操作参数 { "name": "unbox", "base": "", "fields": [ { "name": "collection_name", "type": "name" }, { "name": "from", "type": "name" }, { "name": "box_id", "type": "uint32" } ] }