How to retrieve rows from entity data type

I have a data with following format-

[entity: somevalue , data:[id:1,name:a],[id=2,name:b]

Now i need to pass data part in loop. As it has 2 occurrences for data so loop should run two times. And for each occurrence it should pas only relevant data.

1st occurrence-  [entity: somevalue , data:[id:1,name:a]

2nd occurrence-  [entity: somevalue , data:[id=2,name:b]

As data is type of array so not able to do indexing here.

Any suggestion.

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