{
  "address": "0x1234567890abcdef1234567890abcdef12345678",
  "username": "pancake_trader",
  "leaderboard": {
    "global": 42,
    "team": 5,
    "volume": 150000.50,
    "next_rank": 200000.00
  },
  "created_at": "2023-01-15T12:00:00Z",
  "updated_at": "2023-06-01T09:30:00Z"
}