{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x3c0a4d56f63eb20d4150607de9c803492ed3516a1c741207456d9212414fc21b",
    "signature": "0x27b48cb1e5f12746f0f98650712c4af34d77f81120cef00ac743e5b698d97c67076482ca976c147b8710276041d584c631ef7ea48f46c8b5d7a75bc178122daf1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}