{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28310",
    "entityType": "User",
    "nonce": "0xcf391ed8568b2ceab895ff16486ae1647de8ed230d6059e192e23c1cfdb6845a",
    "signature": "0x65c47678cf1efb7b109f2dfcc1cc0094fe2ecffa25c5fb1cb466a8eaa0cc067531a765b4dcf2409b3f6da3478f85792b1d289139a20c9a584c2fb1482a9bb4ca1c",
    "signer": "0x8eEbaC0c8b926729F8Dc288872A07cc9d08d8d8c",
    "userId": "42402405"
  }
}