{
  "manageEntity": {
    "action": "Save",
    "entityId": "1468817586",
    "entityType": "Track",
    "nonce": "0x960c98ab3f89a8251b61cba1a6b24773d1a1bb675e5917354db38f33d39d6ec0",
    "signature": "0xc0ddeab6a33fdf23f753ec072d7f5ad135345e7d4a9fe820c8514a0f927e6dd038b6d786d433aeb2beded5d3d6f3f078d040fa49a1763502839eee9fb40425f01c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}