{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0ad5b9bb6ae86af7931e95dbc501f99c69acdbc8f77ac6f88b4290f6f86eca4",
    "signature": "0xf3d11fe762536b13a041384a957c3b5a8987243dd4f2444af029ab29dafe11bf272cb4661069e47dca810e7a8291ef48910dcdf56887a458bc22a02e3185de191c",
    "signer": "0x45eA6B73F5847C6151ddc80c12BDc7cCC16ECA92",
    "userId": "216575336"
  }
}