{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323963",
    "entityType": "User",
    "nonce": "0x96b3b9118393d96430e0ca67a63324c02476e1fb838dbf6010ab54d740dcb3e0",
    "signature": "0xa26258b18a4d948223cffb810e837596db04dec8f2ec3d259c83d8426bcd2caf00f4b4954a6ff044d1c8f4095cf9c1363d175b4d3bd51d08c0624b32500277901c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}