{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x3e7a8d6c59d1f6686d7fb9ccd840d65d5d969287c3877fae4581883ab76e1445",
    "signature": "0xf69e22fa26ae75be0ad0d7bbee22243c2bafb26e4a30db5b459016f035469d006d377f8ba74d1416516c526e6e126f78c57e230a998d2e9db22860b6f57633fb1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}