{
  "manageEntity": {
    "action": "Save",
    "entityId": "92568",
    "entityType": "Track",
    "nonce": "0xcde7188fd1d50e68bb0df27c07433e495ec7c660be58ec9e13766fc5efbfeb47",
    "signature": "0xf80e3dcb5e607aae2184d74ec731665841dca88c7948174b3738e3526f248a2f572c9142ae53c9b713cf554e26ba0844d32d0ed8ea048bdfcb2b5bab3c869a851b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}