{
  "manageEntity": {
    "action": "Save",
    "entityId": "796634017",
    "entityType": "Track",
    "nonce": "1787985386755517617",
    "signature": "0x8a2f519b9f09a011d4d34fd13c1f50cefc11d5bba9181bb0b4136c897dd2ea617c023919bb6d1350717d03fb2c41d53663c91867767497b88999fa8cdd3005ee1b",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}