{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943956503",
    "entityType": "User",
    "nonce": "0x3fec667a2790fe852a0384d29563e9b37455154e900ce46369f607dfea35939d",
    "signature": "0x59f0722015fef0084236c33477a1ed53e86177ca15524b226517afb9e05f6ee408f096cf995d526b42225f6da90c20b015e10b7c87937eedbf513581e52b42721b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}