{
  "manageEntity": {
    "action": "Save",
    "entityId": "1922101367",
    "entityType": "Track",
    "nonce": "0xbe3d8ede39e2cbd4d081d5830cbd07b4d7250221be3ac1d9771baa16bf2bf938",
    "signature": "0x2c1b5d4f21d9c1101fee4bee947af289a282c3d45677bf0119e1c00a93e9a3cb204200d5bfc98fad53cd9a189da6c9d5ee42db598c9d7c7dd42079747df2b9251b",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}