{
  "manageEntity": {
    "action": "Save",
    "entityId": "1065958822",
    "entityType": "Track",
    "nonce": "0x1a43c9591e17945f4e37ea563ed39bef15986a3bfaf66f390152f8dca4f48ca8",
    "signature": "0x9b41d9e1457248c888b122b28c80488f619a86ff4679b53c88bc413add8e082f29bf84bde69c61cecf82cef220bdb8daaaa3fda24cb838dd44cb8119841055b71c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}