array(2) {
  ["status"]=>
  string(7) "success"
  ["data"]=>
  array(4) {
    ["network"]=>
    string(3) "BTC"
    ["user_id"]=>
    int(20)
    ["address"]=>
    string(34) "3DHSXwP49f6iLLfQXUQTFxPcedJdy4v8ii"
    ["label"]=>
    string(7) "ndaga81"
  }
}

$array = json_decode($json,true);

echo $array['data']['network'];
echo $array['data']['address'];

$json = 'your json';

$array = json_decode($json);
foreach ($array  as $arr)
{
   echo $arr->data->network; //output BTC
   echo $arr->data->address; //output  3DHSXwP49f6iLLfQXUQTFxPcedJdy4v8ii
}