Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '97ccd7b8df18b689c2fc57a48b1d314f816169d8a96f2780ae6556ffcb2835f7' 
  AND token = 'OvsUXmyHZowRrUm/uKW6Wa/lo2gEjpmr7zHSr0USWgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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