如何为下面的数据集按序列进行JSON输出？

这是我想要的输出的一个示例，有人可以建议我采取的步骤吗？

Something like this

{
    "series_id":"// some unique series id","points":[
      [an array of date(time)/float arrays in ISO8601],["2017-01-01",12.7],["2018-01-01",13.1]
    ],"fields":{
      an object of any additional metadata available at the source that helps to describe and identify the data; a series representing Brazilian GDP might have two main keys: "country" and "concept" as in the example below
    }
}