{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461861705",
    "entityType": "User",
    "nonce": "0x4b2c31f19e615c7e661d32a3d08edfc26a7c090b66782b260c64f6f292f3144c",
    "signature": "0x158cd0da1d2adcd3100b15ec9e15e0f2defea4178308bcf951336b776cc0c02c13b51627748f1f431dcc655e764276eb905577c601d665f2cfb8f39457cdd5b41b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}