UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zXnSArLL5lvscPOX4d5PuvHVbRnGTSizliDyqXf9edc=' 
WHERE 
  key_id = '6a006d75725b4b2c6574bf3d7eb508b5c89f35e16c4a9c9b30b736372a205f5f' 
  AND (
    token = 'zXnSArLL5lvscPOX4d5PuvHVbRnGTSizliDyqXf9edc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )