curl --request POST \
  --url https://api-next.ofauth.com/v2/access/promotions \
  --header 'Content-Type: application/json' \
  --header 'apiKey: <api-key>' \
  --header 'x-connection-id: <api-key>' \
  --data '
{
  "discount": 50,
  "message": "<string>",
  "finishDays": 183,
  "subscribeCounts": 2,
  "subscribeDays": 183,
  "type": [
    "<string>"
  ]
}
'

[
  {
    "id": 123,
    "message": "<string>",
    "rawMessage": "<string>",
    "hasRelatedPromo": true,
    "price": 123,
    "type": "<string>",
    "canClaim": true,
    "claimsCount": 123,
    "subscribeCounts": 123,
    "subscribeDays": 123,
    "createdAt": "<string>",
    "finishedAt": "<string>",
    "isFinished": true
  }
]