let wif = '5pfffff'
let parentAuthor = ''
let parentPermlink = 'cn'
let author = 'lemooljiang'
let permlink = 'kdk54gf'
let title = '这是标题'
let body = '这是正文' 
let tags = ['cn', 'miao', 'bitcoin']
let jsonMetadata = {"tags": tags, "dapp": "miao", "format": "markdown"}

hive.broadcast.comment(wif, parentAuthor, parentPermlink, author, permlink, title, body, jsonMetadata, function(err, result) {
  console.log(1234, err, result)
})