{
  "manageEntity": {
    "action": "Save",
    "entityId": "1342715362",
    "entityType": "Track",
    "nonce": "0x5616a7ce4e0a7bf42262e29562fba5d704c8e0a4291ca478ce62f64499035118",
    "signature": "0x1f6373f5a70fea9c963b2d5f0848b6d43311d602a519716cc8118a9aaa633f3b32385007d1778f590359d65da63157e738e89d2f0c1d7ba744ea9094f17cb7991b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}