curl --request POST \
  --url https://api.hubapi.com/events/v3/send \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "occurredAt": "2023-11-07T05:31:56Z",
  "eventName": "pe123456_account_login",
  "utk": "<string>",
  "uuid": "<string>",
  "email": "mark.s@lumon.industries",
  "properties": "{\"hs_page_id\":\"1234567890\",\"hs_element_id\":\"login-button\",\"hs_page_title\":\"homepage\"}",
  "objectId": "089274502"
}'

This response has no body data.