{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032483909",
    "entityType": "Track",
    "nonce": "0x80dd2cac6c904be1e0509848c083acb77e32eb99f8bf750a6111d04615a4550c",
    "signature": "0xd37b875ba31bbcffb3fef5443841bbcf16e6e6aeaaaca490bc39bf7c8bd3ba7c1e0e7c99154e19ab1ad28f96f6555e31243a3319f7a7360a0e63c6f69d3049151b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}