curl --request PUT \
  --url https://us.getconvoy.cloud/api/v1/projects/{projectID}/subscriptions/{subscriptionID}/filters/{filterID} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "body": {},
  "event_type": "<string>",
  "headers": {},
  "is_flattened": true
}
'

{
  "message": "<string>",
  "status": true,
  "data": {
    "body": {},
    "event_type": "<string>",
    "headers": {},
    "raw_body": {},
    "raw_headers": {},
    "subscription_id": "<string>",
    "uid": "<string>"
  }
}