. The key (string) is the bitcoin address, the value (float or string) is the amount in BTC
         ...
       },
       {                       (json object)
         "data": "hex",        (string, required) A key-value pair. The key must be "data", the value is hex-encoded data
       },
       ...
     ]
3. locktime                    (numeric, optional, default=0) Raw locktime. Non-0 value also locktime-activates inputs
4. replaceable                 (boolean, optional, default=true) Marks this transac