UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1MqfainDbTRXkaW3w8lKYs168QX59YgLwccm7Rc6siw=' 
WHERE 
  key_id = '4551023c919838e7516793a8de20acecbb37646565d3eb5d99266defc6520c5e' 
  AND (
    token = '1MqfainDbTRXkaW3w8lKYs168QX59YgLwccm7Rc6siw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )