{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf0f925ad9e1a2d56b118aa2bbb50ff13f06925aaac979510f4746b4fdccffb6e",
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}