[
  {
    "title" : "签名专区",
    "icon": "el-icon-edit-outline",
    "children": [
      {
        "title": "签名算法",
        "path": "static/doc/common/sign.md"
      },
      {
        "title": "公私钥介绍",
        "path": "static/doc/common/keys.md"
      }
    ]
  }
]
