{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0xa399979d539fa9070165ae57ebf43fb3108b95a17421b307965456ff4735be21",
    "signature": "0xbbd18d051204bed6bff79f93a7c7e6c916ef4c83f5f177714467253b8a1c530d32de8b59ef40d8be0f4715e22dc7907f1e14414b2fc11c631d806087db52d6901c",
    "signer": "0xe309B4910De68C7B1DcF8A12b8F7603E6cF8576A",
    "userId": "354814803"
  }
}