{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "841756759",
    "entityType": "User",
    "nonce": "0x0a3efe5a9886d0e5c996b425790fa3471702033af211fc71ac38505ef903aec0",
    "signature": "0x0a5be5b04c724d95105d8c1d47925b1274380bae0fb0db9040eaea5dcd050ff74eb02e8613d0d3901b279cbe7f6cdd00710889b7d87ee482944a59d2ceadfbe21c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}