{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164969",
    "entityType": "User",
    "nonce": "0xe2e53b513b92d5e0fa8e5d7d086541faf471ae4cade11fe0f93951828fa60c76",
    "signature": "0xf51a07c301499aec8b411032e5bae52a2eac04a8d25813e8472b14268cf5dc9e2210b363dc87e19c746b800cb6c7f928fc6d952fc1343e57c827a62f36c92ed11b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}