{
  "manageEntity": {
    "action": "Save",
    "entityId": "41152061",
    "entityType": "Track",
    "nonce": "0xbc9561192dd4fa4ef612ca2c6271c9cf77ac28773f2338a4287e8eb3c49cca2f",
    "signature": "0x260f0a3555e34e9b4654e21cdd58d4d0aade86f45e2db697abc255b869c5cf983b84a1f21560e15c100a6fc7a18e4d72064409bc2f2067d2563627278b2d458e1c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}