UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WLwfx+/kt8rD+agfVStCjaEjXOsAilpKAbsV/0UEB6A=' 
WHERE 
  key_id = '91cc1ba435f398a62fbe7f9f257077c78a10902961080004c06c656703f46ed7' 
  AND (
    token = 'WLwfx+/kt8rD+agfVStCjaEjXOsAilpKAbsV/0UEB6A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )