{
  "manageEntity": {
    "action": "Save",
    "entityId": "1090147626",
    "entityType": "Track",
    "nonce": "0x4c4ad44465fa3b1a0bc1a954dca4136de5bc3e78e43bd8e7e8ffcb1fceeb3bca",
    "signature": "0xe1ea38e0ec03617506ec1ac68830e2d7fd82e06318b43246c9052c83f358f00264a764182856224dc6a0fc816c7f5cfc7973726384b571a5f686e3923af103cf1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}