{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcf540089d863bcc79623c910d73f37c25ac1914a2dc938c95ee898551bb3f207",
    "signature": "0xdd174e562d3f16575fb2bad01e1cc4ac1c31fcb62a4028096eb2b2f3b5744d082056def676051d58b721e225eed9e8ee19d5cae372912aef59d572c3cc41aadf1c",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}