{
  "content": {
    "body": {
      "algorithm": "m.megolm.v1.aes-sha2",
      "room_id": "!Cuyf34gef24t:localhost",
      "session_id": "X3lUlvLELLYxeTx4yOVu6UDpasGEVO0Jbu+QFnm0cKQ",
      "sender_key": "RF3s+E7RkTQTGF2d8Deol0FkQvgII2aJDf3/Jp5mxVU"
    },
    "action": "request",
    "requesting_device_id": "RJYKSTBOIE",
    "request_id": "1495474790150.19"
  },
  "type": "m.room_key_request"
}