{
  "manageEntity": {
    "action": "Save",
    "entityId": "241217096",
    "entityType": "Track",
    "nonce": "0x059542b7cfd6f196be49f3dde443e571af17b77d4939ba52159a3cdb5484b940",
    "signature": "0xe9d8755b7f2f089a545696bf00ee5e52ef41af111af21062b1a73303186c339644c63961874b54ef19670e78e0f4a350a92470662c3fc47777188ecfd51511ce1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}