{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x8808f10cd2782baa26f0121cd3ac5d16fbccd9212188593d9c7412d15040a479",
    "signature": "0x4e1d359cb7756ec981fb80e2e205ab0aee27a393036a26a53ce1b3808c4a81fc08fecd5cbc683f45efe97c6a86e191d9cf677c9ed9911e769f613acfed41cf611b",
    "signer": "0x17141572B0250E4291cd034d4C034793AdD4876c",
    "userId": "777872195"
  }
}