Thanks, Zdeněk Kabátek,
Thanks for the reply, 
I have tried but still not getting the desired result -
Let me explain My scenario again-
Getting input from Web services for different application - (A,B& C) with different attribute in Json format.
1-  Converted input json in to collection (Jason to collection)     
 [ Json
{"Key":"Username","Value":"Amit"},
{"Key":"password","Value":"test123"},
{"Key":"Application","Value":"Outlook"},
]
Collection 
2- Now i need to store above collection in another collection in below format
 3- Use above attribute in outlook application for create user in outlook application. 
- I don't know what type of application's input will come if i will get input for Outlook then outlook process will run else run for other application .
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Amit Chauhan
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