{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x937c221739d9b4bd8157f029c722e5bf52a9bb0ec2009b30073a54fbd002d178",
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}