UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D8buZDFllm/+qjq0tyLqETmzCZzjRl5VcvZqJWTBBso=' 
WHERE 
  key_id = '1b0849257633b9d8ee1eda09f684eca701f5547a3c6c43cbfeda613a474b9016' 
  AND (
    token = 'D8buZDFllm/+qjq0tyLqETmzCZzjRl5VcvZqJWTBBso=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )