{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a842f37cecc330989ef1deca5f637b93363e02ece9be1b9b8d634829efefa1a",
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}