{
  "manageEntity": {
    "action": "Save",
    "entityId": "1164565087",
    "entityType": "Track",
    "nonce": "0x9825144899314585b493a424bc974774136b72a59d2ad40d962319e528ba07be",
    "signature": "0xfa39eb20b3a17fc8cd05dff3935e6565cfc6940a8585891adee995ddffd1b6f547fef3985c47896817a3408d9db2c6303b7938dde1f9de5e41975ed8be8962e31b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}