{
  "manageEntity": {
    "action": "Save",
    "entityId": "1036526479",
    "entityType": "Track",
    "nonce": "0x22c665a5aab896450529e3b9433d7a9c086641f16ac86aca4c5387f30995de07",
    "signature": "0xb2499b3e42c17f28d7782b0738d672722e14587d709dca7129603b6229f42f9b61d759662e85d2d34a803fe410baeb88b885fe1fd2d0778938c6788a887bc4a61c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}