{
  "manageEntity": {
    "action": "Save",
    "entityId": "1932824803",
    "entityType": "Track",
    "nonce": "0x07c146632df31cd5bafdc674eccf8a5a2558b727a7fc500fbad3e1d5cd118888",
    "signature": "0x6932c2cbf1b1e4d50bbfb2d816be117b8bfe41f8ff671125368ede8e62e9eac373b357e0cb2c70ef02b3c94837a15c4dcccc432617f3f2d9074298a2a7de886b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}