{
  "manageEntity": {
    "action": "Save",
    "entityId": "26240042",
    "entityType": "Track",
    "nonce": "0x1f2f8e77efd92911827d74c022947cfaa7ae6b17368d95a3293132af4f5d3fc9",
    "signature": "0x4f3a17fc6fa3ab864ab25dd1ffd3810b09227a20e26bce8e8190e9454ab8b5b341fd8394423c9c0ab1950de680386639001d96310fb975503325aff67d9bf0e81b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}