curl --request POST \
  --url http://dolphinflashcards.com/api/create-quest \
  --header 'Content-Type: application/json' \
  --data '{
  "jwtToken": "<string>",
  "deadline": "2023-11-07T05:31:56Z",
  "questType": "cards_revised",
  "questSubType": "monthly",
  "quantity": 123
}'

{
  "message": "Quest created successfully",
  "quest": {
    "quest_id": "<string>",
    "title": "<string>",
    "deadline": "2023-11-07T05:31:56Z",
    "quest_type": "<string>",
    "quest_sub_type": "<string>",
    "quantity": 123,
    "progress": 123,
    "participants": [
      {
        "user_id": "<string>",
        "status": "<string>",
        "progress": 123,
        "isOwner": true
      }
    ]
  }
}