{
  "manageEntity": {
    "action": "Save",
    "entityId": "2055743131",
    "entityType": "Track",
    "nonce": "0xcc484a13574e9996d540c669a7a4bec6181c2df7c975c77d56522fdc076e5245",
    "signature": "0x03c717584cae758ea73bbbac8003821982cf93f7eb83eb8ac71a508e6360e95c203bb921e0ee292774b0f6f124ca9877ec96036f9ae55e6e64b0bbdcbd8038be1c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}