{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "61948",
    "entityType": "Track",
    "nonce": "0x67e9d235e9064970bc235886df327edcf55014ebc2fb6a54bffe18bb7d0b929a",
    "signature": "0xb0081512323be2374a8dec6c38bff46c9c85db8a45533a3e515a29b843e7da865f55e26e7a712ae1c1cc2f17c60a77b0e3a4b63abfc36d6f5b04f3d03e6054341c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}