{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106351",
    "entityType": "Track",
    "nonce": "0xe5809ad02701e6ab2a8a6ac96cc6a284c18c15cf66d61da59d5c7499c5b9f925",
    "signature": "0x606e4c2b0f4b1d648acd460097cd74754ec76a97921ae85ed12d2362eb2cfbdb6ad315bf9ed98c9a211fc7a4c886fd445eb3b2ba43cb8a0103d9f5bf0b98fcca1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}