{
  "manageEntity": {
    "action": "Save",
    "entityId": "2035349881",
    "entityType": "Track",
    "nonce": "0x2356217087427bd2f610ae90bc8b8c67d91940aa4fbb7037df16e722d9bb32de",
    "signature": "0xddc6c54df6f19834cee7212423baa9f270f52f2f4e34044bbf1038327e7099796dd0b68cc1681261b6ce6d7b1a5029fc15cb68d0e64e8e3ff81bc1e0cbe8e4ac1c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}