{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x63d08ffd3f91474c06fd0c985c81d981e2faed9111ccc9ac0a6aca8bab831583",
    "signature": "0x65457b1c45421e1e80054bf2cb2609c3c9a41eac7975c1492fe1f42c147d499675aceae294dad2ca6f5d0ee91eec518953d1c288773bb74f74f0e373cda873cd1c",
    "signer": "0xC6A9B7b12EbdF73207B6213c2922968BDE27159c",
    "userId": "725409163"
  }
}