curl --request POST \
  --url https://ts.playservices.tech/api/api/tournaments/{tournamentId}/players \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "user_id": "USER_12345",
  "display_name": "TestPlayer",
  "entry_payment_details": {
    "payment_id": "PAY_67890"
  }
}
'

{
  "player_id": "<string>",
  "internal_player_id": "TP_123_456_789",
  "tournament_id": "<string>",
  "status": "registered",
  "crash-classic": {
    "jwt": "<string>",
    "game_url": "https://games.casino.com/crash?jwt=eyJ0eXAi..."
  },
  "message": "<string>"
}