Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c4cd5b5322fd16707300b9b97f539067819d1ac38b5cfe8d172aea30e0602954' 
  AND token = '1wn+D+3MKPa8b5sVcEpwcxoQNVpxevsO7I6M7fbhj84=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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