{
  "manageEntity": {
    "action": "Save",
    "entityId": "2055231394",
    "entityType": "Track",
    "nonce": "0x5fe1a3b5175f8a118bdb2a86d1135d804165e93db28f7971eacf8a94a3641d6a",
    "signature": "0xaf7530ffdb6a34b87c12897ff54b61fed4a82681ee5a5ff4dd2df05b1300687e3e6e8db599a26a6c4c3fae890841f56409c558019f3d9b3380b5e2df4c90d9c21c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}