Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '94093378a7a469239eec2b9ffdb0e1bf7665e18b2da556fe6c5e3f637559538d' 
  AND token = 'pDPSe07wifz/DQ1Pf5iGQs40j3fuPHAPnBVTmDOMg0I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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