UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5WmhmFv4GQK2EZWf2q4WvPMHFVk10Yf5VTxuflYH7iQ=' 
WHERE 
  key_id = 'c878322c4eb6f9d1a76c824095660233f5732f49d159d7347dff26e5c5f8d912' 
  AND (
    token = '5WmhmFv4GQK2EZWf2q4WvPMHFVk10Yf5VTxuflYH7iQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )