curl --request POST \
  --url https://api.ecrypt.com/v1/subscriptions \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "label": "Merchant Subscription 0001",
  "cycle": {
    "unit": "month",
    "interval": 1,
    "dayOfCycle": 1
  },
  "amount": {
    "value": 500000000
  },
  "installments": 1073741823
}
'

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