{
  "manageEntity": {
    "action": "Save",
    "entityId": "1724193921",
    "entityType": "Track",
    "nonce": "0xb07c09d276733c9597f9fb3d4204a05b9ccfb30538798937e86c4dc863c5259a",
    "signature": "0x9eeb08e60131c60dcc767ac7a9839670d88e2032d0259a819949041e2e7cf2c5291919fda4af45d92a77bf735ff881f6b7c6264a25a44ce08e271295849693fd1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}