curl --request GET \
  --url https://api.ecrypt.com/v1/subscriptions \
  --header 'x-api-key: <api-key>'

{
  "requestId": "000000000000000000000",
  "subscriptions": [
    {
      "id": "<string>",
      "label": "<string>",
      "cycle": {
        "unit": "month",
        "interval": 1,
        "dayOfCycle": 1
      },
      "amount": {
        "value": 500000000
      },
      "installments": 1073741823
    }
  ],
  "errors": [
    {
      "type": "<string>",
      "message": "<unknown>"
    }
  ]
}