{
  "manageEntity": {
    "action": "Save",
    "entityId": "86527",
    "entityType": "Track",
    "nonce": "0x285465fe98036aeeaf64b640100748c33033235244b82ba859ee23345af82943",
    "signature": "0x43a7eb6d0fc2be16a629e48ade286a915aa536469454410589ce02043e4471795713db1792d703f1774583026a61b01aef3e1682bfcf5a702ddf2f5b3030f0e11c",
    "signer": "0x4D11c3319e766BE8ad4bD57B7E1C96300e25bcd3",
    "userId": "261446337"
  }
}