{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x7a395588c661bd988cfe9f9e9363fe610aedd9a6b9beb61651b1fa291045c065",
    "signature": "0x0962b37feb8e24d97e3d13dfaab4ccf31e5fa8c77078599133d37afc8e2305a107d6221a89e59af440bdf1e05701e3b074ee012ddce69380c42531ec8e5ee99a1b",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}