{
  "manageEntity": {
    "action": "Save",
    "entityId": "1036464210",
    "entityType": "Track",
    "nonce": "0xaee34618d8d2c1b038129c5d1e2467fc02f09e6bec91be0276684169397b3fc0",
    "signature": "0xf338704ccf0baa5632c06f977d522a02a9a4b4b30d79d7daa78596312f0deb0f2c3739ad5ab51f5a69af006b7e8430027a8d0271920cf75eadab9775c4dca3ec1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}