{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xd170c870eb6155273ff916a280b2fc87e302f07aa8a6665084aa8e829fd5349c",
    "signature": "0x3992ffe0e9aeeced8e8dd7d020a59f623156c01a65c1d1a71f560a620f3e3e955e50c7bb8469c4cd5a9f56717d73a95ff25baf8bd5cd811a7986ea01f6a40b3b1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}