{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "773349352",
    "entityType": "User",
    "nonce": "0x31650e42e207c460851570732844c7bec3fb0e254309b3179d1828ab338bee25",
    "signature": "0xa368ce117b3c692dc0afdcfa3c3261fbaf6a250a4e2b83c8f13877d36a026cc524a001e33d8f8befd80030888c4225b7c28502369a1e5b338ac5b319f6ce63921c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}