{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x10371da0e954934c798c3ad052313086ef8d9f8a5f88dfb24fb602bf87c80fb1",
    "signature": "0xd27a519dd7dfe25b3c60e3fb861b91f04b4e66622a5a2ed2b7de13c3f3ca1e080dad06f1e8528b81f9aa1d7a8c48dff83c7b4f5c147a45b5320b26a2129143cf1c",
    "signer": "0x358Ff98E943c24A9ab4362e4319963A7AC67A74e",
    "userId": "667185432"
  }
}