{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc6a9d870ce2ab864470da875bcc19a49b86a6ee7baf597a6051ddbf32981e7d4",
    "signature": "0xb09232a6a0e0164a8888f8e01834d267708cf7f70912c62f820dff574d66f17d30931f4426e16536c97d5a60fdfd7707457cb124b69d46e97ebe7b02de8083581c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}