{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "949549851",
    "entityType": "Track",
    "nonce": "0x12c34be1bd7444a025a8e75bb128d346828b3befcfc16d91cf4b1e398ecf1d59",
    "signature": "0x9d9da36c71059da18cb2dea8564dcf55f080d525a7431ce46535a531444acd0468fe4cd388f3a620ff542ec9d643f2ca99650a85188611a5f9a9f98ddbdbcaf41b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}