{
  "messaging_product": "example_value",
  "recipient_type": "text",
  "to": "example_value",
  "type": "contacts",
  "context": "Hello from WhatsApp!",
  "biz_opaque_callback_data": "example_value",
  "text": "Hello from WhatsApp!",
  "image": "example_value",
  "video": "wamid.abc123",
  "audio": "example_value"
}