UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fgQ0h02xC2HbFAVMlTokG9LCwVQj/niKROu1lX1P6x4=' 
WHERE 
  key_id = 'a18f74a39d70b9fccaae453c94a20ad9081692b4f3c7aea3ecb522329ae6c46d' 
  AND (
    token = 'fgQ0h02xC2HbFAVMlTokG9LCwVQj/niKROu1lX1P6x4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )