curl --request POST \
--url 'https://actionkit.useparagon.com/projects/{project_id}/actions/#SLACK_GET_USER_BY_EMAIL' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"action": "SLACK_GET_USER_BY_EMAIL",
"parameters": {
"email": "<string>"
}
}'