{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189558402",
    "entityType": "User",
    "nonce": "0x346b66d9af328d6df75e9fb1b518318459cbcd0312e6da59bf091df69048d52f",
    "signature": "0x679d834b23ddb3561fb4ed5a276197650179a96ceb3531ed5b554124eecc1a9d5c2b1a9965bf182d137d718ff93b4b0b694827e6416a9e1d07193458303040341b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}