Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd2ba460461f39ea22aef61e2177d9ee2a79e420b6352304bd7ea328fa233072' 
  AND token = 'RiyQCMv/7YWcUDG90A8VtlwiGwB8KUl7TDKBgkYKOVk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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