tring) The bitcoin address of the transaction. Not present for move transactions (category = move).
    "category":"send|receive",     (string) The transaction category. 'send' has negative amounts, 'receive' has positive amounts.
    "amount": x.xxx,          (numeric) The amount in BTC. This is negative for the 'send' category, and for the 'move' category for moves 
                                          outbound. It is positive for the 'receive' category, and for the 'move' category for inbound funds.