{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "293982",
    "entityType": "Track",
    "nonce": "0xe481bbe8380fdccf22a158756af4ba496adbb65818a04574fd46adf516ea2303",
    "signature": "0x1dc4c5490b9ab6bf0ad8937d665ae201cc420c8b779729ae853920f7d4af0f0d7a5fb1f2e91c710edf9ecfa1de9f55f9cd7e9b99f24f36c065a36e9caabba47c1c",
    "signer": "0x77716b11b242ACc386023E99B7e647CaCCcbb8b6",
    "userId": "126786"
  }
}