Random Characters PHP Decode Nested JSON - php

Question

Really struggling with this one. I have connected to the API fine and can get the raw JSON Data.
But when I am trying to decode it I just get a load of random characters.
The JSON path should be response->data->fieldData->Case_ID
There are other fields there also but I have hidden them to make it easier to read.
This is my JSON
{
"response": {
"dataInfo": {
"database": "MicroLog",
"layout": "External_API_Cases",
"table": "Cases",
"totalRecordCount": 143691,
"foundCount": 23,
"returnedCount": 2
},
"data": [
{
"fieldData": {
"Case_ID": 139220,
},
"portalData": {},
"recordId": "139261",
"modId": "138"
},
{
"fieldData": {
"Case_ID": 143421,
},
"portalData": {},
"recordId": "143462",
"modId": "25"
}
]
},
"messages": [
{
"code": "0",
"message": "OK"
}
]
}
The code I have been using.
<?php
include('login.php');
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'URL_HERE',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS =>'{
"query": [
{
"Closed": "1",
"Closed_TimeStamp": "06/24/2021"
}
],
"limit": 2
}',
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer '.$token.'',
'Content-Type: application/json'
),
));
$response = curl_exec($curl);
curl_close($curl);
$decode = json_decode($response,true);
foreach ($decode['response']['data'] as $dec) {
foreach ($dec['fieldData'] as $cd) {
echo $cd['Case_ID'];
}
echo "<br/>";
}
?>
This is what it returns
188B7162M111662J>41ISS1AM1200000000000J5D
118A7162I11162J�62ISS1AM120000000000J5D