{
  "manageEntity": {
    "action": "Save",
    "entityId": "992425171",
    "entityType": "Track",
    "nonce": "0xb92662ce7575754e2d659012afb67fc32d5ea92b3b19f036f3d8139c94ca1103",
    "signature": "0x6dc349de10ee7ff3ac4166bd6cfe0db523dd8a5a90396e7f40276d4a713e6790668e93ce116aaab456566690d6a9a4940d15064af5199c166fef2627d255b5591c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}