{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328416",
    "entityType": "User",
    "nonce": "0xa78ded48d90afc209ca0f4725384db86781187146d2ab81f81666a8819fb4b82",
    "signature": "0x78a7a1a742c94d95913bb2a6c1750418b7e764d18e790e85e66abe935518b74b2663ee13f295acee3c26172be1bc1b77824509c79416b635446a8162481dafca1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}