{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x42132ed2ea5b5a6086baf249a2f944934521e051399f34cca86d2bb4d816aa56",
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}