{
  "manageEntity": {
    "action": "Save",
    "entityId": "1308449424",
    "entityType": "Track",
    "nonce": "0x07c2f6bc63cbb6f3228a342139815e14aed32576af7aad8c59c4f40cd8de307b",
    "signature": "0x9522ecc0ae55f65b05a9d779de4e5ceee46dfaf5284f33f85efba0248fa9e85b324ba8b666b119e745ab317faed8ba4a0d4516047dac27a2a1b84c9e94a6f03d1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}