{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6784",
    "entityType": "User",
    "nonce": "0xfdfa40cf3f857c46f14809fc10d45517a7386554f1e06afd4081a108ca222202",
    "signature": "0x391e5a9159cffe8e052cf77c1b4cf6fc34ce72b97c563aadd9a2b46ec397354c71a966d84043fda533098587628cb56a147b6dae3e53930783e48ad2e40d5ca91b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}