{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306115",
    "entityType": "User",
    "nonce": "0x10d04d7a27a853c699be0781c488ce4c00965cd35d3580775f1b473b2499b1ad",
    "signature": "0x9a7a4c388047404d1a7c4cc10028acadbd954af8f5fdc38bc3191b01e48a13a04c96c0acac6e5911bea315b354aeb34875fff5475157f34b5935a369fa3186931c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}