Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aedba9c25bfdf479de4dfac5b7bfa05e5e9ed26a2213118289fa9ea1d8da1e06' 
  AND token = 'giLoocmEQWW49kwDmQ0diCC+79ulU+WsE09Z4TQacRc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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