{
  "manageEntity": {
    "action": "Save",
    "entityId": "1183917361",
    "entityType": "Track",
    "nonce": "0x180f8c23021204cabfcb40c4432c7724e68cfa1f3444bf61e6a0d0c86b86db27",
    "signature": "0xb5c91eb340594d7ade786eb06f90f59d79cb28bb516eb46d00056d7bcf69aadb48796f0f2b4d8621b037a48111ccbc3b6bc9a5358ff880bca18aecb7f33a6e4e1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}