{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x42a7e4a972624dc5ce0a9d8c00170f0de2fed27e1d7ed639c6238861f2b580f5",
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}