{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x3331a9092b61ce10257cda4f37946012d4ad5202aba51bdb178f8e58c01cab4c",
    "signature": "0xd1c4d0030942056c32d1196b69bc36cf9f375e66628e8c2227acb4f34c69311619be8e4d7329c80fbc5a4fea9a7098e1af17f7685062f9fbc0370ef5934fe8211c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}