{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0x39b0af24caa8964464aa6be32453b036507b887e1145a315de1ec6d13ab4c7bd",
    "signature": "0xf5444485b04c7f7bf13d47d910997a57c1655bb7f62b7ea8853b72e0e3d4fdd973e3f60a14cc451f411f898cd3222fd4ddee8b003658f28a22a44ecd21f32eca1c",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}