UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V5BuIklj6v3wxcLllu1EFseXZ6qk5S2XbtA28cnnAoo=' 
WHERE 
  key_id = '557f6b38c7385b4df12e1752563b3fcf23a576ef9f5742764741282265184342' 
  AND (
    token = 'V5BuIklj6v3wxcLllu1EFseXZ6qk5S2XbtA28cnnAoo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )