UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Iwl0CTWriopD3Qy7MokhF8PnovtYyULLD3MUiCkI8U8=' 
WHERE 
  key_id = '50c57d08b3b1669993b6695adfa6880285228b324c118a61edb8af1fc539171d' 
  AND (
    token = 'Iwl0CTWriopD3Qy7MokhF8PnovtYyULLD3MUiCkI8U8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )