{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396164",
    "entityType": "User",
    "nonce": "0xf436a2450c4951b1d7ec60a89862ab78ab5fc39638cf85b71be82231a7e233f7",
    "signature": "0xace63d5ca01a7919fe4dc495abf453da43d5ed7417b6569ea0a012b2893a59a108a2bd09be744b5fe818358917d0e472705c4e76a67875315328c1dba637c3851b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}