{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae51d49d9de0968fb918b21ad6bc9e3a7d968712d646c7b6f326659e37531349",
    "signature": "0xe4e935c5fe19f27fd5ca4c40d8a7de1e8bea21e9c361f9473250f339322314c066a1d01192acc0674a07da4cb2662821595016c355c63ff63f9ac1abd1ec6bad1c",
    "signer": "0xcaC98489880506C0C92625ec414CD18dEE33d8b0",
    "userId": "787923601"
  }
}