Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d93a328f30960a10003844c0ca409b9ea12614a820450a653d9af68454cef8b' 
  AND token = 'tQJR6IsHKI0pGAwPc5UOeim03nNRnWKZBaRXFOl/6dw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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