Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efac54db75c4f68c76231a857df0b1bbbd22221cba3a2801aeba1b4f455ed460' 
  AND token = 'yj4cZyVEhtuRstXgUC3qQNuH0elz5seK6W8sonEPTAs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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