"description": "The current location of the user's read marker in a room. This event appears in the user's room account data for the room the marker is applicable for.",
"allOf": [{
"$ref": "core-event-schema/event.yaml"
}],
"properties": {
"content": {
"type": "object",
"properties": {
"event_id": {
"type": "string",
"description": "The event the user's read marker is located at in the room."