{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x87594fffad760a67b34916d1d0dd2b03662f2319ab6f7d3f0c25b013864b8b9a",
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}