{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956631",
    "entityType": "User",
    "nonce": "0x7f363b7374b75bd1130043b1cf99b07a566c035fe3b05895f70e53fb39829615",
    "signature": "0xfc84d82c8e8a89cc0104175ca49c6b2bb5b3561250f98b00453dd584a30b5616720938e658836de90ef46b26d1fd96845f04bde801638109c0439f324f7023891b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}