UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l4UlV2bnccgpbKhgkNFhLctDNtLF4l7RfNibR2X/EGA=' 
WHERE 
  key_id = '28ef949c6c01780e6be5072ebf6a21ac4c4051fc32d647747400c7fff403496e' 
  AND (
    token = 'l4UlV2bnccgpbKhgkNFhLctDNtLF4l7RfNibR2X/EGA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )