{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "832058678",
    "entityType": "User",
    "nonce": "0x623855379ae42a16922db292f7783c242f15aa48a4f43dc511d219bbe5d89733",
    "signature": "0x4632c796f13cf77a078dd52b0eacdf8a96fbea33a9c4da767c264359c0ec1ce72dcb10ddb4235de3fdc0372a75f5cb58dd2a4ac7de5660bfc6eaa6e16b6c38f61b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}