{
  "manageEntity": {
    "action": "Save",
    "entityId": "92598",
    "entityType": "Track",
    "nonce": "0x773ed8afb33c73c020bdcf11f97fb1d5bc980ef5a6eca2cad4a32ebab6bb398c",
    "signature": "0xcf1ad6a87589fe9b10206f5e0fffd889741ea42b0d7befb454ed453aaf92f3a2750aa4c9cfd634812b494afd9e8288c8fb17e885affe09be2b726e5cf85c6cba1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}