Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '90a9383a6b5cc5ed8ae180d896d2048e4e07af607ddbf546acfed640f4eb15c9' 
  AND token = 'Y0rj0ysYF1SVUb9K/o0/t/JQ7WZ3v3giy8hBQOJiXls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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