curl --request POST \
  --url http://localhost:8787/api/v1/quiz-submissions/multiplayer/{roomCode}/submissions \
  --header 'Content-Type: application/json' \
  --data '{
  "questionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "userAnswer": "<string>",
  "timeTaken": 123
}'

{
  "success": true,
  "submission": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "userId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "quizId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "roomId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "userScore": 123,
    "correctAnswersCount": 123,
    "createdAt": "<string>"
  },
  "correctAnswer": "<string>",
  "calculatedScore": 123,
  "totalQuestions": 123
}