{
  "manageEntity": {
    "action": "Save",
    "entityId": "828197700",
    "entityType": "Track",
    "nonce": "0xd32c232d078e4acd69c0c03dbe4a39d972a7438e8bae1242d7cd41b70b9bea08",
    "signature": "0xc68aa6d061009a867f21703061110e549a489094b605502048fc33a00d586f9a6df010fe632cc576cc55be1ccdbfc40d0aa07b7758c24960371ecf54c9d876371b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}