{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4368",
    "entityType": "User",
    "nonce": "0x86e22b16def66623c6e03e42746de205f85df5aa24e1cac10413cd27d9702e1f",
    "signature": "0x191d1f26130402174f6d2c64046a4321a5fb4ccc9f30cda3c7c19d123f37810a2de1187be352593930b9056c5d0368bddb5b70c37dee0056555559098ed985691c",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}