SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44b63ac744b7fdb9613158347be6cc5279e31a56e6223e55eb384e67e09f9339' 
  AND token = 'wylgV0QZ+SD+jgrJCEFpzklvGNpxo9IOEKH0QR7J7WY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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