{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360778",
    "entityType": "User",
    "nonce": "0xcb1200b45ff489ce9a94bc5d1070298fa1bcaa94de291b605bd534dc68a96f6f",
    "signature": "0x990ac80e06dabd163f88d6abf404fdd63fc7b8812e7f2436787fdbcc534226d65fa6c248cf6a8c43c7e80c0f91bab0c9af4ca39eb53bc979fb8594f704f092631b",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}