{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a94a5cd7b5769ea2e39d121b919758e2e42cce54da3ade91f2587ac786d3411",
    "signature": "0xa0f0c05a0f8fd46f1098adcbb4aca5995bd7741491413657ec619d280e9b170806459bf08c8a14da26d4d148493fe09008b45fc317f065f8ce543bc11b0f1fee1c",
    "signer": "0xFe04380B93FA8F3107E8954d8a21fbF10030c9DB",
    "userId": "340906926"
  }
}