Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d00ecb9b50915c708a691237f8b543e46413604c8fb0c9318056739e47ca68f' 
  AND token = '0lry051oyf5zAew4QoIM6WK7r1Dsig+X/1UcrJiTodw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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