{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xcb8ea957cfdadec38369392894d7715f0d28f6fd2d6b050bc8b19260e57bab38",
    "signature": "0xda97a6bef3c79ff93d4c49bec86b8860bd373ca2b22bd2ff92ac6668f6dc2bc6733e9057159e4e5b091cef2ec18961f90883f417a1375b5dfdab69336864b71d1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}