UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'flVZbzfKliFHhCSTg7DROl5wdDVTjlo8jTusgn9Iu0M=' 
WHERE 
  key_id = '7b9b15b12ad1ee377f4802c58e232dbfa946da82f806651f14eb1df57e085b77' 
  AND (
    token = 'flVZbzfKliFHhCSTg7DROl5wdDVTjlo8jTusgn9Iu0M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )