{
  "manageEntity": {
    "action": "Save",
    "entityId": "165294",
    "entityType": "Track",
    "nonce": "0xc79111fc7aba569aed7fcde002b334688da4fd98760f974477da899fc3e32a28",
    "signature": "0x58080e0917adad36e7b7bfa4791cc6c4af5a4958ecd97efd1602c02de2b3c830514222ea11ba09dd536355e90483ea6f05134b9c4acd0e590430c02fd1bda8841b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}