{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x39255c112af41a2fb4ba965251e49ba3fc8c6f58e70c3aa2ce0b06e487f193d8",
    "signature": "0xe38a0b996947d1194c89be4d90547e7e2d0863806cceb9d5bd31a7dcb3f622c506625be0f8373da437a6319590c91f5beb71e60bb61dbfbb06a96c3efc1fea791c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}