UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RQG6HTBt+EwBRpfAS3f53MljKZzwcIXxhEBHkKt8csM=' 
WHERE 
  key_id = 'e1a4311f0cf4083c9bf34e8ba6edad87c8b557c516a0cf7e3e07de6d1cb69e37' 
  AND (
    token = 'RQG6HTBt+EwBRpfAS3f53MljKZzwcIXxhEBHkKt8csM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )