{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfde7eda752bb16d7ae43e6afd6c9962b2d8ff3b7e54ca2ba717a0574e28ac0b3",
    "signature": "0xef69eab94f399704e99ce2d47f165dfa48f103ea5a66a68eb06590321f6a82ad65d15f42223230db84753b7322c922da853df34f26d91a6dd9232b21f80bf4ec1b",
    "signer": "0xb048bD61FDCf327C9a427cdE23bbA16700E0bb74",
    "userId": "850759075"
  }
}