UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nTgfgntz+4x/ZcWl3hGL2PzwlS6jzz+fmMxsuyQXmS0=' 
WHERE 
  key_id = '68a769a0bf85eecc2ae6e70daaafe174f0c3f933509d6810f90758a003017b84' 
  AND (
    token = 'nTgfgntz+4x/ZcWl3hGL2PzwlS6jzz+fmMxsuyQXmS0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )