{
  "manageEntity": {
    "action": "Save",
    "entityId": "1514335035",
    "entityType": "Track",
    "nonce": "0x768fb53631c60d76804cbe2bc9cdd5d5f755b65010979d8668a2a09c657f37d7",
    "signature": "0xc39acf60242e2716fc146a31c3b025e86c753e21874ff3afbf9f7d07998b069935299966e7f36e6e82b30f4a74e9f4f7c94c509f8844ac76d8f7934a45cbb3ac1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}