{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6710e9e944945af1223aa00ac69f8d0b0da5b57885b1880f43135532a404f0b1",
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}