{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8920",
    "entityType": "User",
    "nonce": "0x147bcb88093a750de38545a08569604761d609d94666182be4002a9b0cf49d57",
    "signature": "0x0bebdfe23b2ddb1a09c7ceef988e8e6df1679cfe76cc7ffa248ab657f06fda8c657b92e365e14dd75d4e9bb3c905e560ac821a759021e3f2301bb146382170a31b",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}