{
  "manageEntity": {
    "action": "Save",
    "entityId": "1493093093",
    "entityType": "Track",
    "nonce": "0x0410d790420d43310a765b0bf63c205523a0c3b7751af13bd73fd83aa34776dc",
    "signature": "0x3f1899a1d79c3ac61122df980c32341eb7d71ab4865bdd45e27e98aa29532f02637bd422aa7fd2693eea698f61a0a6269526dec204d81cade2465aa2d451ee211c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}