{
  "manageEntity": {
    "action": "Save",
    "entityId": "2024932559",
    "entityType": "Track",
    "nonce": "0xfb24acecfb844077711978a8439d9454f8abf39c80e16e818e01f9af04bac100",
    "signature": "0x9ff023ef9c54aef6203ff0f72c8bc0eb489ae84f5f4298e12e07dae86144158b152d139bb3d208d1e4ccb44651ed42072698c71cd99ae2d5113f8c4207d497e81c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}