{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0x838387b47667171b04c231e11a9a115435bafd71529ba571bd8ec6ba47993f46",
    "signature": "0x2f2099455e3b2d87b45805dd3887ed86fc2783c9c9f1a91f9831a36bf4e1ef990786fa471b88225fd7e78cc4ca476b0740c57bdb2c586a07884a9cd3563280e81c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}