{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c398c5ada7361612c14c3edc8995d0520f034882f9694aae28f0d0b70749d35",
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    "signer": "0x09363fe4Ae92d9CF53793A43Da9b2491411c7a6c",
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}