Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a02e0cd374fdf9c31d8aac73005119baec501656ee54f1e249fe39628d38664' 
  AND token = 'gglBXYfOtZEDJeJm4LGxEf8qYcFduGbmrCCKQrBXo4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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