{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1945808cc6da6e826295ad0e0b7ace6c778724b87e06b6e959d3a63e9e494d6c",
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}