{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x65c650824618b7fbed17bee9c75500d6aa95c76490167303928ecbdd501fc9eb",
    "signature": "0x64b85f4caa43be8e7091f316e4c704ec92dabcd63c3ffabbc383a11f4b792c934106b3a439d66460f340eb26053e0de5d6a4f8222867d4a889e40d84fcaead261c",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}