{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "296636119",
    "entityType": "Track",
    "nonce": "0x799005dab0460a293b7dfbbb4821eff4dd4ebc6fe3799106981ed9c3cb8c58f6",
    "signature": "0xc202bf8d3b0fe7213fcbf2843650a98507853a82c4ec5b2f25de83ec65c7609921fadcc510ffd4531822296bb4a18f26d3e37c332ea2db35cbe81a53fedfc8ff1c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}