{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193424229",
    "entityType": "User",
    "nonce": "0xb616dd2ec868075920a2575f8025c660b607840c4fe4f0676f4b1894042df9bb",
    "signature": "0xf1854e1f5ffc62cc17e715e82c6a9425c65a4b38f3bd912a6f46e2bba5bd8e1a54726606b56ffa83479ee377db14f74fafd622aca6ce52ef57bb4437e5f1d8fb1c",
    "signer": "0x07d82F5c5532d460FD996F668Ba8B36089bdCcf8",
    "userId": "951271865"
  }
}