{
  "manageEntity": {
    "action": "Save",
    "entityId": "1110584667",
    "entityType": "Track",
    "nonce": "0xcd5b59d2292f6a1d4597facdd6a6cb054141d3f65c040c206fd94cbf4c06f094",
    "signature": "0x2737e564ddc50721b7127cff40d254c70a4f0e4bd2bb1e7cd0a56276b0f47dd16c2fc981760ab9be3f8ec1421b2a121b55e57b8d2d6be68fbb6ccacf4d1c0e0b1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}