{
  "manageEntity": {
    "action": "Save",
    "entityId": "1092159135",
    "entityType": "Track",
    "nonce": "0xc1bb9019a296377582f2cb6f4b995d6383e1daba375f195a179f6623c194a355",
    "signature": "0x2b78fbca926e8eb7c2f052e89ba90ce750327d832fcd81326d5d8ea43c11a816011db8bf9e3b673385f61795a777a0e4ebcb5cd05c4c2d1fa418bb92591eac831b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}