UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n6Pzfje7GrpHEHpxrYYeQ55OLfDml9cnomKVfa8Lgrw=' 
WHERE 
  key_id = 'b5f957ece01405bdc5f49d4c9d317eec5a591239ee390427ef480232c9d2f2a0' 
  AND (
    token = 'n6Pzfje7GrpHEHpxrYYeQ55OLfDml9cnomKVfa8Lgrw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )