{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0xdca8e3f9eb339a9182da6bfab49cca56881c2727916ed46bcb8d4eba73396e59",
    "signature": "0x250e688dbc7cedabcd3b0ee412aea661420bb9d7944239fd41c140b7ea9b7a5d7ccf277f9e3c4dda0836151ff09ceb1ed6610320e92b27afac98d6f46c6506151b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}