@spec from_payload(map()) :: %ClearBank.Webhook.Events.FxTradeCreated{
  buy_account_id: term(),
  buy_amount: term(),
  buy_currency: term(),
  rate: term(),
  sell_account_id: term(),
  sell_amount: term(),
  sell_currency: term(),
  timestamp: term(),
  trade_id: term()
}