Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2779d57a45f901bfdffed5baf0096c34bd5440388ddccd254baa5dbf10472193' 
  AND token = '92wm9e+RSed+l6iLXeAReuKzr0O7Q+/r1Qffw3YA2WY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}