{
  "manageEntity": {
    "action": "Save",
    "entityId": "1633479823",
    "entityType": "Track",
    "nonce": "0xba995bf2ebfe7bc284bbfdc6e91a116403fed6d8a643a7acdef63ed7402fa007",
    "signature": "0x754a22ae71cc67725f631c120c14caf5bff0dd0f19710db4899207177dcc1d30211afd88bf8cbdab38c3dc5216bc159669906ac8ed3b101aee5f10d2745a967e1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}