{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x21f513b41b8c630e94156a2da1bb340c255db3fb533f10670b943db0ac99b58d",
    "signature": "0x01a510e53bcda4b9441bcfc1953ee3618708b708a159d9389af5e4fc5dfb61e0560a3733e84b7b4f67482852a65c2bce7bc184d64c4da7c8ebf48f988e34a94b1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}