{
  "manageEntity": {
    "action": "Save",
    "entityId": "1796772659",
    "entityType": "Track",
    "nonce": "0xa9facb95445911d7646e852543fe9d638cf5d5ad32f24259c2eaed988b09332f",
    "signature": "0x66f1514d4a7acda2e92f12e1f551db4aba387c24e00c0b5728cd84d5b53fd1d1705c52fa8af9da530325ade7a2182d09607e6d01b2a9dfab0154ca510d1bee911b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}