UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CDczniVWyDHeC0v2PoG1aNvfw0lWInqLyx33dmO//MY=' 
WHERE 
  key_id = '7ce400ce6374c59b38b290a9d5d2f4ff64af38b668e7f55a88994bfc118ab264' 
  AND (
    token = 'CDczniVWyDHeC0v2PoG1aNvfw0lWInqLyx33dmO//MY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )