{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211416595",
    "entityType": "User",
    "nonce": "0xb3f01a38d18c9040f25afa010a2fa63d7720d7b15803e0730ddca716dc3a0763",
    "signature": "0x09786b42cc89f24d70f5d605216bdf5afa15c884600fae6038508752a5b947527156faa07e39436c8c9763e3ff189a9dc918eab636db2955739bab6935a3ff7d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}