{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1435383784",
    "entityType": "Track",
    "nonce": "0x94b8f4ffc9e169d441ebd15b93e2edd3ace779527d8fc100d723f2ff005f4e0a",
    "signature": "0x66a0e818ed212ca41d05f11e5735e73973652b3171982ff0a2473503f2bc6eb9115cd5ab1f39431e6fdc071747887d47f6e16794dc5664f64b310a65eb0ac5381c",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}