{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1568612100",
    "entityType": "Track",
    "nonce": "0x3d174baa89e3cd0ab4c1164cefc8f1f506a731d9292bfa9784ca99bff6007c22",
    "signature": "0x8d79c8235ac98b65396015de31e4d2fff69aade4a908fa9e3b7331355c880c8f4f8d0019b383071d50b2f8e35a102291eda71fef571c48aad616b1da31557d431b",
    "signer": "0x903d49D6d538a1099c9141c0aAf14CD7a851C27A",
    "userId": "479924237"
  }
}