UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KM6v713Ao2++PAi/sVo0Xq4AjpuXk0gEnF5+jNdvxIk=' 
WHERE 
  key_id = '1951ea9d2f01deeb0ce4f1bf425397e3948a6b3a34416d19ae534a7f19e62948' 
  AND (
    token = 'KM6v713Ao2++PAi/sVo0Xq4AjpuXk0gEnF5+jNdvxIk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )