Get a person activity

curl --request GET \
  --url https://api.stardex.ai/v0/person-activities/{id} \
  --header 'Authorization: Bearer <token>'

{
  "error": "<string>",
  "data": {
    "id": "<string>",
    "person_id": "<string>",
    "activity_type": "<string>",
    "activity_content": "<string>",
    "activity_raw_content": "<string>",
    "created_at": "<string>"
  }
}