{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x03042a5685621522d2108b9ff8d7de856a6b36662c8b9dc7dc7f7a3b78417945",
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}