{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfff7a245463d05c4c67aa81e15e1d31bc83db147ceb9441d6faff1d64a73b6ba",
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    "signer": "0x7851719067C51aB77192b66F1DE2448b67646061",
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}