{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb25f2d40cec2ec515a3d555463d7d78ab7fd3b8ec121f4f56cec0b2405b14149",
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  }
}