{
  "manageEntity": {
    "action": "Save",
    "entityId": "996100670",
    "entityType": "Track",
    "nonce": "0x10fb93b1b53fd4260d9acf9f4cf0b13d9415c7bedf2315bd385a605949d52145",
    "signature": "0xe34eca0894c661ffd6130f3bab85405279d6b139af2f9b569323f1d720d8306c3413108378ff779b0c6027e80a729c0c761a9e82b751dcc86c37da95b65bf65f1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}