Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3466466d496d69d9232f776bb98876d2173ab78761fffbea0add55f71dafe969' 
  AND token = 'yp2xcu71FRN5/2/1UXr70CD2d45a8S60DvyyW+/A4Vo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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