{
  "message": {
    //RecipientProfile using channelType and channelId
    "to": {
      "streamChat": {
        "channelType": "messaging",
        "channelId": "my-channel-id"
      }
    }
  }
}

{
  "message": {
    //RecipientProfile using messageId (required for updating an existing message)
    "to": {
      "streamChat": {
        "messageId": "my-message-id"
      }
    }
  }
}

{
  "message": {
    "template": "<COURIER_NOTIFICATION_ID>",
    "to": {
      "streamChat": {
        "channelType": "messaging",
        "channelId": "my-channel-id"
      }
    },
    "data": {
      "name": "Foo Bar"
    },
    "providers": {
      "stream-chat": {
        "override": {
          "body": {
            "skip_push": true
          },
          "config": {
            "baseUrl": "<overriden-base-url>",
            "apiKey": "<overriden-api-key>",
            "apiSecret": "<overriden-api-secret>",
            "senderId": "<overriden-sender-id>"
          }
        }
      }
    }
  }
}