Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67905dfcc0df3580fda170ead852dd001c263b72a1fbe80a8b5604566c805dcc' 
  AND token = 'NZdIXBL8vpg27tTQRodgv584ddInzX4ucJSlQGwP8jA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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