{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828368024",
    "entityType": "User",
    "nonce": "0xa237123921b05f3b21089eb264dccc4c226d84b1c3a6ef1152bfed7f90305374",
    "signature": "0x3981f7ce21d41ba9603cb0d2a873374e4b8d4d68a0d2a2919cd6fca602351de81c56d557a0a205b528234051857d64134824aec9ed2cd1faadf311671d80a0a71c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}