{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x89cf7c1c0045b4e349d42e2a75e78bc887ea4efc1b0f03290a2868b20cdc3c2d",
    "signature": "0xbdc90a99a579175b04cd83afcdb6736efa6fdd50b83c6e520bbf5cad14ea10f5190b2917e46e856e402d44984f8614d8c203a085297dba38921de3c98b3e40c41c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}