I have an external api that send a POST to my server the POST body comes in a json response as an array 

```
{
  "IDs": [
    1378143,​1378141,​1971403,​1451025,​1451026,​1374561,​1378036,​1371423,​1371424,​         
    1971568,​1371426,​1718539,​1718515,​1831163,​1718540,​1362068,​1376341,​1378221,
    1378222,​1378220,​1380468,​1380467,​1417322,​1385612,​1971567
  ] 
}

```

I save the post as following:

```
$Id = new IdModel();
$Id->id = $request['IDs'];
$Id->save();

```

This save the array in my database column id as "Array" how can I get all the values in the array to save instead of the word Array?