{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9e9c35e7afa6a9e32671f95147b87208faea930e9bad2feea1ebd9e9a15d9b82",
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    "signer": "0xe7Bb4Ba5f405D9CF084b6a7950A13FA33BE40dd6",
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}