{
  "manageEntity": {
    "action": "Save",
    "entityId": "794497065",
    "entityType": "Track",
    "nonce": "0xab9fb4a194b810e4368784b97a2b6d0f3aa5a8e499db309e94732beecc90e7dd",
    "signature": "0x6e8e23ee3204b9918e5d0e5b0b726bc6953d6da4d7735e6b5f41dbcdfb906aba7afc3b2b7d8247fbc92d697759e9eb9f717fdd8efef73b16caa7d98d0b46611a1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}