{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1442134506",
    "entityType": "Track",
    "nonce": "0x920eda429c3a1247903bf302d1f82327268606684ab89aa05afc8430887f0d58",
    "signature": "0xc58005cae0246903d9402e14ee3b2a48c743bc000224194c6acfc510349e2a846e4e2a477618648bad1153c4d2a045c891e467559e11eae18a4d81fd279437b71b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}