)
         "address": amount,           (numeric or string, required) A key-value pair. 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 lo