UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n2s1DoM5kH+5H1BdUduCESrlYJGem8C5TzdaV+peFD8=' 
WHERE 
  key_id = 'dcfa1fc34233614a0c65dbbc183fb0827c3eff2eb4e9171470313fbbe6fbd3aa' 
  AND (
    token = 'n2s1DoM5kH+5H1BdUduCESrlYJGem8C5TzdaV+peFD8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )