{
  "manageEntity": {
    "action": "Save",
    "entityId": "368323",
    "entityType": "Track",
    "nonce": "0x91c76b480a20df308c9a535c7219cf88c4547d7de69dcef67575d704dca73cb0",
    "signature": "0x8bc7e2cc5987473a20df0de208a2cab6b92a23662e9a03e5ab7061f0071631086e37761598ac541ecde90a650485126b1f77cb9d1d969e68920680a74a48d4181c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}