{
  "manageEntity": {
    "action": "Save",
    "entityId": "110480983",
    "entityType": "Track",
    "nonce": "0xcce4894a81cfb6e75e9d07fa332bccf2938746e2868e8e94edb1dd87cee72b83",
    "signature": "0x487159e078fdec3cf56f2a80e2d53b6770088024c1466d31bd20bfc413e67ae40ac767bdf3b112dac3d766641932a52e826a2a624abd283c12bd2f72c9e860621c",
    "signer": "0xaBca4973b8911Fb110a95E6e00e5BBFBCa671473",
    "userId": "832058678"
  }
}