{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163308",
    "entityType": "User",
    "nonce": "0xff6e17abba35ad8278eac58bb0aae3c8bf7a0c1291f290754a9039e81962c3f7",
    "signature": "0xef27a547c21cb92b66cca21599e9b7da67dfa4397c6181fbacb4e6e4705bcd9d3a4ecf47aa983502c688075f1b493dffe1a2a1ee9d1e0cfb78783ebce1f38be61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}