{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb30d62c391c7638b140ab95e49e84cf8f7e406da2be1ffcb5c9b1746c094247a",
    "signature": "0xb34d82c0a0f69868a03ca8c65522e4fb8108863e569202330c95b611e0fc2de83f065a468957df5981dc1d2e4961af8f53dc746ac4f38c07cb4a4b8ba01885cd1b",
    "signer": "0xd70d1ce367a4f5E0df350A923de0D657CA485168",
    "userId": "154914075"
  }
}