{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333045",
    "entityType": "User",
    "nonce": "0x44e4440541151f5ca77bedb630814c390e18950e354976951c0a64f1e56b08bc",
    "signature": "0x2399a9ce4be8aa1c7d68ee75799746b6775773969845d62fbfa7386e1611086d233e64eb068f250131ff2b6b0856ae2dcb6971885f8e9c061267a54b1867d1401c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}