{
  "manageEntity": {
    "action": "Save",
    "entityId": "795078074",
    "entityType": "Track",
    "nonce": "0xa7468929b84bd8e9d749f9a1b023de55c8bd23a6d832df706542d11b93549a12",
    "signature": "0x78ebbcf72a2570dd67ae9c29d306f4ca9e7337782b7fc84a16a8ab6ae160c3f82e1145c4a83884b6b2255549a388c81a3eead995dd587a912d669da04769a87d1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}