UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cVkd+ASDmTST6ItLV9lGhvgYCAQprh5jcHLj8sy54N4=' 
WHERE 
  key_id = 'ae18cf18d924a29dee9350734f577644030fc85d3fde3531bb864ec3293a4702' 
  AND (
    token = 'cVkd+ASDmTST6ItLV9lGhvgYCAQprh5jcHLj8sy54N4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )