{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21228",
    "entityType": "User",
    "nonce": "0xc281e11a86954e69fd5c7b6d68c16879dbb1348159de463973cfec829dcca6ed",
    "signature": "0x915ea2144c262a255fc93ac217fd725a664ea42af3d9546eda9058c20ecdb3d10eddfabf72d39a3716ae3ecd80460d8cc208505ce5de7b70eb9b68a4bf09ed551c",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}