{
  "manageEntity": {
    "action": "Save",
    "entityId": "1805964051",
    "entityType": "Track",
    "nonce": "0x367b5a6493945dd310e6c8f85f63aa8636f4aef1b278dfb944ac5fbe48e5e9ee",
    "signature": "0x82ba17b9454b3ba8239dc158e07391681bd982394587de3a32bb0f4eead73d625f835981cc674577584859c4e1be350e48efc1e2aa2436ec835facd2ecfa0bc31b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}