Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b01138a278a919cfbc0880999ec059a382687eeebbe1db1109588171470610dc' 
  AND token = '1l/WToEmvKiJ24M7k0aDsDooIl3xJ70fczamo/EAzZA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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