{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd91f03e4d8753b3cfa0cfdb48c9b43d891644119bc707907cfdca9b40ba45164",
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    "signer": "0x689Be5c20E6Da52e11A70751E9FaCb05Abbc7805",
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}