How to transform json object (from source)?

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How to transform json object (from source)?

I need to read a json object from source and tweak it and transform it to a "similar" json object (different field names)... What is the best way to achieve this? 
JsonData from source:
"identifiers":

JSonData format needed from above data:
        "other_identifiers":
Thanks
Seven Stars

Re: How to transform json object (from source)?

Shameless bump. Please share any help.