UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BjKaz4x0DYc2kb2vlw0HsGRQBvrPCwTvyq4uQBY3G+4=' 
WHERE 
  key_id = '50388ec58a1c79745219e1e993e1ac13fcc9288ef3342d05adff19901930f809' 
  AND (
    token = 'BjKaz4x0DYc2kb2vlw0HsGRQBvrPCwTvyq4uQBY3G+4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )