UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rkw1EWYJPe6YixZ2yZbdcmRNvnx+UVeoTRByOUWBSfI=' 
WHERE 
  key_id = '784c3e99e81cf2c36b7fa320e0f4a37080a7f857c7d4d844b2eba13ddcb50820' 
  AND (
    token = 'Rkw1EWYJPe6YixZ2yZbdcmRNvnx+UVeoTRByOUWBSfI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )