{
  "manageEntity": {
    "action": "Save",
    "entityId": "1088057906",
    "entityType": "Track",
    "nonce": "0x24fef4aa041be61fdd1de19045dafd29c48019e66829f84c810f2257b5686808",
    "signature": "0x30cabd8913a26b840736ed1d164812a9a642467202a07e0267bb1f10c1d9c40670a4c232bdc6c1171889d9aca22748113486f274645010d4c2586e93a073f89b1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}