{
  "manageEntity": {
    "action": "Save",
    "entityId": "26076830",
    "entityType": "Track",
    "nonce": "0x444b104f52190ae8d7c49903114171ca84b74013f3affb7a31f5c9c0b1586461",
    "signature": "0x8aa7b851997eba79692e3f2e91f95ba930f299c1d393b42f074b5459ab168e547ca24d79cb0830cc5afdc8d1b04077c05d9e830f37d32d329f63b2b73c217f201b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}