UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdpwZa+9fUIEPLW66dohdrWV6kaFSfgYG1gEhPCj1ms=' 
WHERE 
  key_id = 'b2abbddc5290959714446710bf1e720b1e41301bef1ecbbbbc8b7b4f9bbf0ab1' 
  AND (
    token = 'MdpwZa+9fUIEPLW66dohdrWV6kaFSfgYG1gEhPCj1ms=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )