Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '26223745fb1c0f8a7c97e5b9683fa312d8b12215e7ec5c7ba6243266c4fdcc02' 
  AND token = 'yIhyHy0AaWrNzOlCvcoz1FAWpklAQKVSIWF3nkUiWB8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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