Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1cdbcd120b8249cf362462ecdd878035dcabfa01d4acef20d320caa951f1f176' 
  AND token = '7SThjX9DRKw8EVqEybvRPwPstcWueIKg5VJSh5k8I5g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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