Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64a8c7c76bd81b90e653154f2e5182ac02e7eaed4ba5c97e248c1ae705450e7c' 
  AND token = 'wwDU++OTaICsWRzwJh+HptEuotrrTuBVZuK7gJw3YtE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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