{
  "manageEntity": {
    "action": "Save",
    "entityId": "2070023641",
    "entityType": "Track",
    "nonce": "0x1a858fe00587ea32c394270513f7dc0087ed73f68197b4776f4090f7764a018e",
    "signature": "0xbb016d8a684f726c8863e56457147c8eb67558d0099577b915dcaf904e907f6951cfb8d732099552d9c81d721eb901c92663b2cb917ba9563b23425e99e2eab01c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}