{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018628",
    "entityType": "User",
    "nonce": "0xae5e0c8a5c91b48d9a1b7235d51964005d5367b06fe5595c79b82ce823827c87",
    "signature": "0xf9712779f4400fc7932e024cd64da71a781d8eb999600f40de7f3d2f523ef70466b7aacced66938e35383e17d3e000ba06711883a36c5d368d5aff994bed217d1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}