{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3bf8b4b6b2e972a5f006afd90221902c6516e5f8410c4c79faca43d30a097b7c",
    "signature": "0xbd3e453ec57e5a3aaab1593abae12ba810602ac48f59cd584f65fb83ad6915676a13d0ad02037715af76fd676a9d1d92317e97db21466f006eb145334685181c1c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}