{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc9b7daeae64b5acf40420374b154b9b9d99000c3d4d163ae89693d2b5543de27",
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    "signer": "0x06319Bacff0A4B00a2ba469F00671687201fa74E",
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}