{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157112461",
    "entityType": "User",
    "nonce": "0xc136a5a19191b85746ec6f4cded881c1817dcc4a83e5fa689e4bdadf36cec123",
    "signature": "0x48ffa29db6369573a3a251197ad17fc27a7f77885adf253ada84470157d3c3e47c6718894dfc7045c487eeee9318f485c19b803f01df80e9aca5dd2f106de8221c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}