UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MYqJhIWLLzGFC2mAMzJz/9siZVcZeunXUU7csgThumo=' 
WHERE 
  key_id = '1a97bd6be9d3ee76f4146de3d31d7e88c6d6cf14585d1ffeb41bdb1d3c13b1f2' 
  AND (
    token = 'MYqJhIWLLzGFC2mAMzJz/9siZVcZeunXUU7csgThumo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )