{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xea21a729b20e2354a83261afcd3437d994bc5733f3572ec790450640e3da9590",
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}