UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'txNd+RIuj38SWP6ThgDQENAhlXMhCtxrEBxf3tNX0uc=' 
WHERE 
  key_id = '2268b00e38a724eb2e585fa4a6490c968fa017720c693490a1d3826fe511dbc1' 
  AND (
    token = 'txNd+RIuj38SWP6ThgDQENAhlXMhCtxrEBxf3tNX0uc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )