{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "108768",
    "entityType": "Track",
    "nonce": "0x3c6d47766b7a67d1b5ba27c056a51000798cf3683daf5d5938acfbc94f239cb9",
    "signature": "0xcf41d0d7f7b6d715de50c897180afc7383719f2bfd646510f4f5e4b18117086e4b43dbd131fd1a949f9b18d8ffda90e4b8ee073f1d44b7670462465c28e804861c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}