{
  "manageEntity": {
    "action": "Save",
    "entityId": "1180410142",
    "entityType": "Track",
    "nonce": "0x76458dd7d682d78c568dafd0ab3ce28a63f8e43b6927f414301aaade0e6ca5e5",
    "signature": "0x080da9b823441548bd0ef332edb5808d8c422c9669374fbd82a9eea8564072b63a29066d104f00f3d0f715a22deba4e4175c95eaa2f655979b836d58b5ac0c3b1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}