{
  "manageEntity": {
    "action": "Save",
    "entityId": "110807685",
    "entityType": "Track",
    "nonce": "0xcaa46393dae329c37fef53bb3815a0860301ff0f877cf81e1f2d2e2ae3996fc8",
    "signature": "0xae460cebe192c20aab602d2441aa0806e9c3ad9dc59604b2705129879e8cc6fb56b34cb553a85c7fbdd6828de044e0ebca4e22e4433e8f6c77faac469886638d1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}