Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '96ae88af9bca1e18654ac611c66bd07db00c34f59525c2028618e2b1829fca57' 
  AND token = 'P/gxA7kaOBvStCn4SP9UFUgq7l9o3xKoLWYvfa7UsBQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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