{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273958188",
    "entityType": "User",
    "nonce": "0xd9ba369cebe308ddf2bc483817018d3743c1eeea2373d27fb625feff3814eec1",
    "signature": "0xa76e1a6785806fd24185178c6030b6f20fbcc46b7666fa26f05402d6003bab1a321dff4f9e9b55e6d78749c7d725e6ea8ce42a6ae5364ed7193ce8d8a27ead341b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}