{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5d860f66f2f63a6a2d4ef52ed65f763c080d169ce18b3d762b97d92c035c0f17",
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}