{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4510",
    "entityType": "User",
    "nonce": "0xbe81bd58f6755555ab410c199cab0ca1ce71897581eb1dd82916fa3884059c6d",
    "signature": "0xd6a8c14f8cb2df4ad5342a2e19ab66e9ce4ca6d09a5e92b254410b5622a965d324d0737f185f24347bb58ddbd851483ae7e07393a7da5d9912f49b1cb1fa94911c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}