UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u0IiUYCO5oySSp938tq78OjfvWS+IuN0jpSzpmvDUTM=' 
WHERE 
  key_id = '3c668843cc82644ebc19a9df88d21566681c18e4a5c64d7f4b8da11561cd2d67' 
  AND (
    token = 'u0IiUYCO5oySSp938tq78OjfvWS+IuN0jpSzpmvDUTM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )