UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PUfUAWQBGwFJ/QfOOU2o3AvjdRzX77/85j2n8egr/bM=' 
WHERE 
  key_id = 'c6e80c986d09637684a96fcf34d6b885b93f12d858880f2357ae09e7684610c8' 
  AND (
    token = 'PUfUAWQBGwFJ/QfOOU2o3AvjdRzX77/85j2n8egr/bM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )