UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Us7D1dVPMlEeyYdRI8wPm3UVNLhxmEKNHzmjhabfKmw=' 
WHERE 
  key_id = '551b2fee12b9101c6c3680dc0be1f7156a7b1d27ff339fa1f73a6f9ddb3012b2' 
  AND (
    token = 'Us7D1dVPMlEeyYdRI8wPm3UVNLhxmEKNHzmjhabfKmw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )