{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0x8407bf8dd864fd0c41a9ddd87d289552d80d32805e7af876a62ae0ec9968b50b",
    "signature": "0x298274bb716bef4b13da9c2225cbe1fb03777957fd0f5567f23f80ce60138cf120586fc2aeabff84fd44b550d1937ce02566a0a307a0c3158e1282762ed18ed11c",
    "signer": "0x5f512800E8460c0e3A244c95Ff54E4310f2c488b",
    "userId": "82636883"
  }
}