{
  "manageEntity": {
    "action": "Save",
    "entityId": "1034411552",
    "entityType": "Track",
    "nonce": "0x6a3815b57a3ce4255cdbf27da298fad4f9444d1c48aba03cd7f2a7ea28a274a0",
    "signature": "0xcb4f438dd50cb80f76aea854136424ecdb970b1b2d73404bcde75b7272a3d9db212f4d38d72c4115f9fb6b37a8a6bb6a522b5003ab11ee5de9a1c0a39bfb279c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}