Important Attributes	Description
`redemption_option`	An object describing the redemption option that is running low on redemption codes.
`redemption_option_id`	The unique identifier of the redemption option that has hit the thresholds.
`number_of_unused_codes`	The number of unused codes left in the redemption option.

{
    "topic": "swell/redemption_code/below_threshold",
    "name": "Swell Redemption Code Below Threshold",
    "redemption_option": {
        "id": 149,
        "name": "$5.00 Off",
        "description": "Get $5.00 off your next purchase for 500 points",
        "icon": "fa-dollar",
        "cost_text": "500 Points",
        "amount": 500,
      	"applies_to_product_type": "ALL",
        "duration":"single_use",
        "type":"Coupon",
        "discount_amount_cents":0,
        "discount_rate_cents":null,
        "discount_percentage":null,
        "discount_type":"custom"
    }
    "redemption_option_id":149,
    "redemption_option_name": "$5.00 Off",
    "number_of_unused_codes":0
}