curl --request POST \
  --url https://api.basement.fun/launcher/send-custom-activity \
  --header 'Content-Type: application/json' \
  --data '
{
  "launcherJwt": "<string>",
  "label": "<string>",
  "eventId": "<string>"
}
'

{
  "success": true,
  "activity": {
    "_id": "<string>",
    "label": "<string>",
    "normalizedAddress": "<string>",
    "timestamp": 123,
    "eventId": "<string>",
    "gameId": "<string>"
  }
}