{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5",
    "entityType": "User",
    "nonce": "0x04ce28ad51b25e00ebc79280ea3dd4bf709e6959edc8edf1409635d3f841bb69",
    "signature": "0x350814d9c88a85cf4c97d9a8d52aacba32e6eb98aa348bd51fa485b496b946205af929c1d61abaa3f5e766ce169a43e8b22c878921206c2e73c3a9d8f2b727a71c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}