{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "764",
    "entityType": "User",
    "nonce": "0x0a8362863dc09e92b20358e3771ebf61e494964358bc61b054fd5b630c7d4ba8",
    "signature": "0xf45b55992a37705144d9ee96b35d2e77fae8ba5b09749f642874d9353a6b54794e1dd15a8acfc61df9a5fda1746185969ec3f18aab23f3a8a842988d251c1ee81b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}