UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wu7knWnN6SnVVgWkQ27dmC5KhBz/npCyqjcpWCULQfk=' 
WHERE 
  key_id = '68c01c9042fbdc7fd27f0ee4198870b52e656a55fcfd1805623a519917a1d7b8' 
  AND (
    token = 'wu7knWnN6SnVVgWkQ27dmC5KhBz/npCyqjcpWCULQfk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )