{
  "manageEntity": {
    "action": "Save",
    "entityId": "483727991",
    "entityType": "Track",
    "nonce": "0xfd0c0bdcf8da312d5d5edbe7051c976f65c56c256a43f78f07ccc5992c15fffe",
    "signature": "0xb1d5ccbeebb91cd0fe41d62e51bc5c278412f3237f9f96ac567d856042ff40c52247d897b423ce10d88ac3e169d58802c3e48b1308efbb808d0e743522ebc7b41b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}