{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9582ad3c6710aae92502f93acdc6ddec6b8e295f077a8eaa2e30eaed1da55950",
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}