UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lr0+toqJ8H5vOXkNWbE69QVA17OyPhnDyNq0WheZrjo=' 
WHERE 
  key_id = '3b8c9274ede6b19f3f71953b1bc64834f9c2a72e3f2737ce1dbd912109a45464' 
  AND (
    token = 'lr0+toqJ8H5vOXkNWbE69QVA17OyPhnDyNq0WheZrjo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )