{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x785a46f45da4f54366ec175c15b39fd63bd3cab6d8433be649e1a03aa05c4e69",
    "signature": "0x12e18ee811002d70a3f2081a1875bde26fb2ad48fc9770c342db76236b55b7d073897bf2d507bf6905ec34ccd91de8bf39914c5a0144fbe78192d5fe55ac70d61c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}