{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb0ac226b10d562516669a7a24fc679e2cb3300554efbb6843604d0d9006b226a",
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}