JSON columns into Rows

Hi experts ,

   I have a JSON data as shown in the screenshot (at the Above ) . and I have to convert the json data into another form as shown in the same screen shot at below .

If you abserve the screen shot Valid Date column has to be converted into Rows . Since each date is have two ADJ_RATES so we get two rows at last .

Can any body sugget or code how to convert such a json into another json format