Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '360b730b1e7f6ac7d0a9ea1a90cfc44655f36407176b5b129d1ca257c624ac72' 
  AND token = '551I5QkCpujA/QSiOv7pFikpfUsyKoOzYJ1U7Ja8CTs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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