{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28f19ebfac97c090024f8ed5f203980a7fac13eb5a713e5495ecbb0ff8966c7f",
    "signature": "0x99a30681ee701bed3b8ce18264f838499fc166710fe8ad4b444ad19b4346bc8637ee2fe55eff187b8761973fff50e4fe6031b558e106382a0d6fe8cdf5937ae31b",
    "signer": "0xA3a5960129b84d3A5A2EDD6B8133FEDccB3f38Fa",
    "userId": "707033133"
  }
}