Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd32fdb8b57709dab8983697893b26966fe24be87a08a8b824d6ab277e237178f' 
  AND token = 'kbVF78o/T/mkvdhlHmEMxgJn50ZMOYe3iT1dguS2ioM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}