{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x607027271c6aebfd76af3acdf288f63a3d3cedc43d1edf6433b343847aff9d5b",
    "signature": "0xffe8b872cc04a8deac7fd566f15ccd9f5dd762aa2565c037a5c16762084dac981fc5fc0eb68300ec7ed2dcf6ef294a8bcf4467b9385347bf1090a494ab9d9e211b",
    "signer": "0xE00d35cDEf561168f54846Ecf996dD5dc728fF14",
    "userId": "702802703"
  }
}