{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "app_id": {
      "pattern": "^app_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "changed_at": {
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z))$",
      "type": "string"
    },
    "previous_app_id": {
      "anyOf": [
        {
          "pattern": "^app_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "product_id": {
      "pattern": "^prod_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "workspace_id": {
      "pattern": "^ws_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    }
  },
  "required": [
    "workspace_id",
    "app_id",
    "product_id",
    "previous_app_id",
    "changed_at"
  ],
  "type": "object"
}