{
  "$schema": "https://json-structure.org/draft/2020-12/schema",
  "name": "MessageInfo",
  "type": "object",
  "properties": {
    "ts": {
      "type": "integer"
    },
    "_id": {
      "type": "string"
    },
    "sender": {
      "type": "string"
    },
    "template": {
      "type": "string"
    },
    "subject": {
      "type": "string"
    },
    "email": {
      "type": "string"
    },
    "tags": {
      "type": "array"
    },
    "opens": {
      "type": "integer"
    },
    "opens_detail": {
      "type": "array"
    },
    "clicks": {
      "type": "integer"
    },
    "clicks_detail": {
      "type": "array"
    },
    "state": {
      "type": "string"
    },
    "metadata": {
      "type": "object"
    }
  }
}