{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332339",
    "entityType": "User",
    "nonce": "0xded154b175b46ab5266e47b04c4ef30738e8e02f08440e271db207dffe239022",
    "signature": "0xc89f9d0478775e688a8524f587a00bf1125ec6d1f0f6bf1216e5bdb4357a540e0fb3f923ecd6a0c33ab75bd8247204a823b5c49470ed6a01b4d1f767d6c636cf1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}