{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x507238624bf66ed16a628a662843ea4286e446d7dd5eb6119df197bd648e16cd",
    "signature": "0xda01f4d1cb63b43561ffe5b38b9435887d788ab39b1e442dd08ffc86a0417c4d4b7729ef1b2df7242b95f6de2fbcf364994b372ba3579d54382e9a4fc3e171a71c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}