{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x003d1599784ac2e793bc582fdde93fb38a3f7cbde00c0a7238236b19ecab99e8",
    "signature": "0x4261ad2d2023d547338ea3af81db7e3c10b91597c9573cc0159ebec94012fbe560b3f1b1609dd21571d025c1424432a25dd5a3f3ac9a8c831ead6b7722c4f7d71c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}