{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57937",
    "entityType": "User",
    "nonce": "0x9724bc6a389445227f066ba2ffa72e545cc784d89d4a57ba2cfb905075bd3f0a",
    "signature": "0xd39aa79f9c60c091e47e99f06178bda1bb26bceed95c86185ff4465c3b9c6e9a3ca11c7a63ee7015b41938457c2a6b98157531583ff4247ffc63116591ee7f981c",
    "signer": "0xbfD7C54BBB5F2025f80854451949cf5E3c545F5b",
    "userId": "668159681"
  }
}