UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '7HuTJ/mgtwbpRBHRpvjJtyAsf//o+RMaupxQeVJW6KY=' 
WHERE 
  key_id = '45f6210fa4b6bec4e0c12f5458042da8e8d0b2aba9255916ebdfd9f65083e3e4' 
  AND (
    token = '7HuTJ/mgtwbpRBHRpvjJtyAsf//o+RMaupxQeVJW6KY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )