{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6c2a347f50e774fdd573764edd15055da28798ca22ff16bd0cadfc40b1572dc5",
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    "signer": "0xEa9F45271C810281286B961944208Aa990206f89",
    "userId": "394371583"
  }
}