curl --request GET \
  --url https://api.bitski.com/v1/users/{user_id}/payment-methods \
  --header 'Authorization: Bearer <token>'

{
  "paymentMethods": [
    {
      "cardBrand": "visa",
      "cardLast4": "1111",
      "id": "pm_1NoBH4E7964oeAEGtfSbXJ5v"
    }
  ]
}