{
  "manageEntity": {
    "action": "Save",
    "entityId": "2026820689",
    "entityType": "Track",
    "nonce": "0x12a9414a0aebb2e9692afe58611ecef546c26fd14ff6c641fd219b5c91da3b34",
    "signature": "0x7daed322a01a8c5dd797036c766eaba3f01d143f5cae3c898a3c8784e535732a0e5710cc13cbfce2edf2030468f3c4dbfd7ad32f9301f187a7b2e54b723837991b",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}