{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x28eb07b8e7b04365fc53f8e068a2ae6964bbb04f5fc475c587c2031c53edaaee",
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}