curl --request GET \
  --url https://api-v2.watchcollect.com/v2/outbound/sends/{send_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "actor_user_id": "<string>",
  "session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "session_name": "<string>",
  "session_label": "<string>",
  "text_sha256": "<string>",
  "text_length": 123,
  "media_count": 123,
  "media_urls": [
    "<string>"
  ],
  "recipient_count": 123,
  "source_type": "<string>",
  "requested_at_ms": 123,
  "updated_at_ms": 123,
  "text": "<string>",
  "client_idempotency_key": "<string>",
  "completed_at_ms": 123,
  "recipients": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "requested_at_ms": 123,
      "updated_at_ms": 123,
      "group_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "recipient_id": "<string>",
      "recipient_label": "<string>",
      "waha_message_id": "<string>",
      "error_code": "<string>",
      "error_message": "<string>",
      "completed_at_ms": 123,
      "failed_at_ms": 123
    }
  ]
}