{
  "manageEntity": {
    "action": "Save",
    "entityId": "917402829",
    "entityType": "Track",
    "nonce": "0x698153dc545a01e4b932f3eff956ec13a79252a1d04eb3add9ca1403a9a32e0f",
    "signature": "0x739a15d97b382ef73a6027831f2f1bfece468b12e81eed1072c77004151336e119f4ef6212a37c8e9e955b15fb4ae43da2da9d43d546c3ab900bc7fc067a6ee01c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}