Does nginx support such a function, that is, can the content of reply be modified?

For example, the content returned by the interface at the beginning is like this

   "data" : {
      "totalAmount" : 49,  // 用户累积所中金额
      "remainingCount" : 3 // 当天剩余抽奖次数
   }

A new attribute was added at the end--Total number of draws, so I wanted to change the previous remainingCount to a more appropriate todayRemainingCount

      "todayRemainingCount" : 3 // 当天剩余抽奖次数
      "totalRemainingCount" : 10 // 总剩余抽奖次数

However, during the online process, the server comes online first, and then H5 comes online. Therefore, during this period, H5 will not be able to parse remainingCount, affecting the normal online business logic.

So I want to do some temporary processing through nginx during this period to make the upgrade smooth, such as parsing the server interface to automatically create a remainingCount attribute based on todayRemainingCount This is compatible with the old interface as shown below

      "todayRemainingCount" : 3 // 当天剩余抽奖次数
      "remainingCount" : 3 // 当天剩余抽奖次数 兼容旧接口
      "totalRemainingCount" : 10 // 总剩余抽奖次数

Wait until H5 goes online before canceling this temporary restriction.