{
  "manageEntity": {
    "action": "Save",
    "entityId": "1419699091",
    "entityType": "Track",
    "nonce": "0x31451e4ad3423ad194f152bca4301f0dd196896ac13d43d16edf7d2828885a95",
    "signature": "0x5614b45c5ae6c12984a6a92dab9c4a54e45966436b37d6133ce4d0a2ff9fe79031fa2115be53ce7c3f89960097e479f80c72b89d70ef75fa8f2880c36a22b26d1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}