curl --request GET \
  --url https://api.storyapis.com/distribution/delegators/{delegator_address}/rewards

{
  "code": 200,
  "msg": {
    "rewards": [
      {
        "validator_address": "0xdb8e606ad7c02f37e43d10a10126791dc94b0434",
        "reward": {
          "denom": "stake",
          "amount": "16994236.393259084134400000"
        }
      }
    ],
    "total": null
  },
  "error": ""
}