Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ac6e2351c3689cca558f4ba35cc27f0e481e28483c5ccae8900f4a8b39e2068f' 
  AND token = 'vM7wE5XtpXP4hjiQ6Eu2rXrVoLjzfDRo9pJyTJZVtWc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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