UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n0qzZ7pdx+10398o3k0z62jwX5NdXira6IpgfnXiDAs=' 
WHERE 
  key_id = '1f56d89454339da813ed5d2aeb46342f0c25b64b54ca9df6386de88ba8a04950' 
  AND (
    token = 'n0qzZ7pdx+10398o3k0z62jwX5NdXira6IpgfnXiDAs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )