Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22762dd11a4edc5b45f0d23a4babb602dcaa10262431ca621690936f5528518a' 
  AND token = 'xguLm73pQz5KFtWKddq+CnPsIYxGyE8/rO2mT0govls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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