{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1409938",
    "entityType": "User",
    "nonce": "0xe28b794af6a8fae248e41ad11eb9cc381e69f7529905f466639e28479ecffb23",
    "signature": "0x891c9ead388235cf6ae254d8bc31f022546bc23824615be3e3958e30bdb22c9431f7666f4b0781b68865dd10ec78bfc8aaf188c129a8ea05637056e9990744731c",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}