{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0e709c0daeb4d302eb88b71629555d7116072f8dc4e6f946fbafaf3fcc49bad1",
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    "signer": "0x4fcC461734A738D49dd2157C29fB2318fEFe394a",
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}