UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Oh0s68Y9vZ9UghOEYn6qS77U0KbUcHdOkpSMDJQxSmI=' 
WHERE 
  key_id = 'a4283c6f19f534c5b039aaa7179e81784d9de94708766acee77d9c52b3a91ac3' 
  AND (
    token = 'Oh0s68Y9vZ9UghOEYn6qS77U0KbUcHdOkpSMDJQxSmI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )