{
  "manageEntity": {
    "action": "Save",
    "entityId": "1080635717",
    "entityType": "Track",
    "nonce": "0x1401539a3a91dac27ecd681ffc6aac524b2acdf2652f41c534a3d7bede3f5e97",
    "signature": "0x2470782c12f33b419ebd594f03f7857eb55d299d9fc3a97c925679929aa488803e0804b9f83a46479b8f8622afc738a0f4fe73542c8edf1ecd239c288a0296ae1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}