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"comment_1" : "number_of_digits_after_dot - опциональный параметр,но если у нас будут добавлятся еще валюты кроме EDR BTC, то он понадобится",
"сomment_2" : "формат значения exchangeRate - ##.###### (6 знаков после запятой)",

"currency_list":[
      {
          "currencyName":"EDinar",
          "currencyAbbr":"EDR",
          "number_of_digits_after_dot":2,
          "exchangeRate":0.0028,
          "image":
          {
              "url":"http://47.91.93.63:8081/etaomanager/images/1488166162000_2.png",
              "width"=40,
              "height"=60
          }
        
      },

      {
          "currencyName":"Bitcoin",
          "currencyAbbr":"BTC",
          "number_of_digits_after_dot":6,
          "currencyExchangeRate":1,
          "image"
          {
              "url":"http://47.91.93.63:8081/etaomanager/images/1488166162000_2.png",
              "width":40,
              "height":60
          }
      }
  ]