Text Parser bundles to JSON object

Sorry, just figured out how to post the output bundles from the Text Parsing module:

[
    {
        "i": 1,
        "$2": "paid"
    },
    {
        "i": 2,
        "$1": "fb"
    },
    {
        "i": 3,
        "$3": "6473927987887"
    },
    {
        "i": 4,
        "$5": "6473936854287"
    },
    {
        "i": 5,
        "$4": "6473927987887"
    }
]