UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VSX2xu27kCWWmQ5tzMvu8TUbWyCw0ND1gkckSmdwBEs=' 
WHERE 
  key_id = '53f8ed148ea3b606f6e9a4271a66ee11c879373a696c86c1c6abc95655ad5911' 
  AND (
    token = 'VSX2xu27kCWWmQ5tzMvu8TUbWyCw0ND1gkckSmdwBEs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )