{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7bc048d9894c40cbfbfa598ad8441854a74bc43937e35ac67fd6b0f964c1a839",
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    "signer": "0xaEFf265964fcB3741139c51F721ce8d4bEDd9067",
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}