{
  "manageEntity": {
    "action": "Save",
    "entityId": "1814936219",
    "entityType": "Track",
    "nonce": "0xa6a2f3cf82cdb87326eb81ee7dcc1146e04f24e4d570781bdbba3e1d15abae07",
    "signature": "0x2eb5b2236303d9edf79d7d38e277fdac586f44581ded4a00ccbd258b61ce69d26d80e2b72d61576803c01171f4d2172097ae059d6d5be2a1418b8efd062ba7291c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}