{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x807ef004daf48c631137d8a6ede56c95c9f8dda26d8656cfaca7bdb2058d79f0",
    "signature": "0xe560c488b6bec02e997dca4e9508edc88cfa70b8ba0611b32753e108651eb74c535f814a71e6b7e4e440207359f1850791a69fbfa9400dae31b0d042e7fe1e0f1c",
    "signer": "0x911F705554cbb79211D9281C72F158Aa47b0aC16",
    "userId": "426200974"
  }
}