curl --location '/v1/end-users' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"external_id": "string",
"name": "string",
"participant_type": "HUMAN",
"persona_id": "string"
}'{
"created_at": "string",
"created_by": "string",
"external_id": "string",
"id": "string",
"name": "string",
"participant_type": "string",
"persona_id": "string",
"tenant_id": "string",
"updated_at": "string",
"updated_by": "string"
}