{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb798511ae77c06f39cd5a88d42a4e50f4d6986fcacfc8d1dcc26b39fbae424f8",
    "signature": "0x0ef03aadcb0486777446c27749fb2123c06204a86189220b5fa90fdefd81094c022d743b96fe856ef4d7631b08ade1a1c2e61b42116b5e1790a482c88b59e2921b",
    "signer": "0x0A2e0a3FcF686Bb778cD7B9FA9C8E65A5c9b361C",
    "userId": "423072511"
  }
}