{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159054652",
    "entityType": "User",
    "nonce": "0x82608f6754d44d239dc35e5a3e8302618cf76fa424f9190d9e0c624945f876b8",
    "signature": "0x91278638c1b86d1c27d1ff0ed0de1c060551ecde63bea49c998a7da2b9b3644403c0ab84d7dc5edba6de3259d727563790298faec68d189d1ccc0a05e816e2111c",
    "signer": "0xA4B0C175920655a227577F59B8b7d134256B5386",
    "userId": "450369035"
  }
}