Push a custom event associated with a contact

curl --request POST \
  --url https://api.sendx.io/api/v1/rest/events/custom \
  --header 'Content-Type: application/json' \
  --header 'X-Team-ApiKey: <api-key>' \
  --data '{
  "name": "abandoned_cart",
  "identifier": "john.doe@example.com",
  "data": {
    "price": "29.99",
    "currency": "USD",
    "item_count": "3"
  },
  "time": 1669990400
}'

{
  "event_id": "m3m2k3mnkjn23nkj3",
  "status": "success",
  "message": "Event created successfully."
}