{
  "manageEntity": {
    "action": "Save",
    "entityId": "1758281952",
    "entityType": "Track",
    "nonce": "0xbea926b3ba2862567fe6f5b0fd85300f914e72d0dab31864235911e0f2064b5c",
    "signature": "0x2e6c7c8127b9a92f561cd23a8d54383fb59ff544e475a53d6f059b681a3727c86d77612729c2ecca675a956d31f0b669cb38e2d7770cf713e5f1d4af9a4c40311b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}