UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mNYcKcSOD9I6D9M4ivpljNw2MtHnQGPR7NmvJrN64aw=' 
WHERE 
  key_id = '6eb5ca9aeaa5bd2669b7f87485759ddb8060f77e6d84515f4a465fe4c7468961' 
  AND (
    token = 'mNYcKcSOD9I6D9M4ivpljNw2MtHnQGPR7NmvJrN64aw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )