{
  "manageEntity": {
    "action": "Save",
    "entityId": "692483689",
    "entityType": "Track",
    "nonce": "0x16b186bf09629c4d4e6716babf71535fe7dfec28b74b20d34162df35375424b2",
    "signature": "0x3167cfb61adbbc2aaaf30defa1cbda1393f0c256667e8b8444886d29b1cb8b454aa89501af9c098cb99ce60da80eb1c0b5479ec3d99004ae0737ffea45f817c71b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}