SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09315489b9ec62b457ecf110cf07280fbbc133922bff18e8559b4fb0809b7f33' 
  AND token = 'ITZm0uJbGw9/m3U+L2W/lRL7AV6NSt6Gj3QYABv1EqU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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