{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1ad522734d02b5a29fec42e0017a33c461dab2c1fafbd5c84ebea72aa1ce667f",
    "signature": "0x92d5c7b14b0c4d942019724418bc3880e8ef82ec5c09e57ffbdd46bf135dea573b335ae16f7be7a15f2091912fa9c1230a920031bbeda89a6a63344843b07d461c",
    "signer": "0xD8CA2791654E07cC9A317A555D5a5628126ff0a1",
    "userId": "406813663"
  }
}