{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9677e017228bb9a9a7f97592d2ba3f7198abaf4e49d1918c4a7b9f9c28cd8b3",
    "signature": "0xc8e3dc9370891a010ab3e6c8f66e32a099e5f13f0063cedc9af52a7d03f860d85996fe118655696db7dcf308121a348a63195c2fd4de1ffccab0be8a7ae953101b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}