Bash Script: Error when using variable in curl data - bash

Question

I've been working on creating a script utilizes curl and variables. Doing some searches I found how to place a variable in the data portion of the curl but now I'm getting errors from the curl command.
(Some parts of the code removed to keep passwords out, everything is working except for entering the data into the --data portion of curl)
curlData=$(cat <<EOF
{
"rebootClient": false,
"createPseudoClientRequest": {
"registerClient": true,
"clientInfo": {
"clientType": 0,
}
},
"packages": [
{
"packageId": 702,
"packageName": "File System",
"packageId": 51,
"packageName": "MediaAgent"
}
],
},
"entities": [
{
"clientId": 0,
}
]
}
EOF
)
shopt -u nocasematch #Sets options back to being case sensitive
echo "$csName"
curl -vv --location --request POST "http://$csName:81/SearchSvc/CVWebService.svc/InstallClient" --header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--header "Authtoken: $token" \
-d "$curlData"
Doing a bash -x everything looks correct
"rebootClient": false,
"createPseudoClientRequest": {
"registerClient": true,
"clientInfo": {
"clientType": 0,
}
},
"packages": [
{
"packageId": 702,
"packageName": "File System",
"packageId": 51,
"packageName": "MediaAgent"
}
],
"clientAuthForJob": {
},
"entities": [
{
"clientId": 0,
"clientName": "srybrcost",
}
]
}'
But every time I get Request body is empty or format is invalid