{
"direction": "inbound",
"attribution": {
"utm_source": "string",
"utm_medium": "string",
"utm_campaign": "string"
},
"kind": "max_channel",
"data_max": {
"chat_id": "string",
"user_id": "string",
"from_id": "string",
"message_id": "string",
"reply_to_message_id": "string",
"chat_type": "channel"
}
}