{
  "manageEntity": {
    "action": "Save",
    "entityId": "1217024353",
    "entityType": "Track",
    "nonce": "1793797018360751336",
    "signature": "0x9ea31d337cda663724eed1189f07b12597d358799594f7ce02cd57fbf2e3a12e5fb1f0e5d4d5b51da69fece39e26c050baa28f4b01171a51f29a8809b78920721c",
    "signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
    "userId": "568518925"
  }
}