UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8nN4yO0ZkQEOkHlJrLxKTZlKPE3DxF/5L0/VPghRPP0=' 
WHERE 
  key_id = '79cff46c1a8b30e83c28eb0bea8ce7a9ce29046fe6aa72e9da6023da6ba043f7' 
  AND (
    token = '8nN4yO0ZkQEOkHlJrLxKTZlKPE3DxF/5L0/VPghRPP0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )