UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nEJAcBosVx1tWWer4LWPtrAcld6L+CJgA+77mBtge2s=' 
WHERE 
  key_id = '38849e3e1af490040c50f5878fab3a18d642f88636c62a52dbf555275f505374' 
  AND (
    token = 'nEJAcBosVx1tWWer4LWPtrAcld6L+CJgA+77mBtge2s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )