UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ZW7lfP3qdPi0RcxVb+z0NRgxwmvSkJEMmDLHznexmns=' 
WHERE 
  key_id = 'a4ba94fd4d24d5fe68a9048b43d468581f0156864357cb0796d043961c1472df' 
  AND (
    token = 'ZW7lfP3qdPi0RcxVb+z0NRgxwmvSkJEMmDLHznexmns=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )