HecEvent

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "HecEvent",
  "type": "object",
  "properties": {
    "time": {
      "type": "string",
      "description": "Event timestamp in epoch time (seconds since 1970-01-01). If omitted, Splunk uses the current time."
    },
    "host": {
      "type": "string",
      "description": "Hostname or IP address of the event source"
    },
    "source": {
      "type": "string",
      "description": "Source of the event"
    },
    "sourcetype": {
      "type": "string",
      "description": "Source type for the event"
    },
    "index": {
      "type": "string",
      "description": "Destination index for the event"
    },
    "event": {
      "type": "string",
      "description": "The event data. Can be a string or a JSON object. This is the actual data payload to be indexed."
    },
    "fields": {
      "type": "object",
      "description": "Additional metadata fields to associate with the event. These fields are indexed as metadata and can be searched."
    }
  }
}