{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "777260",
    "entityType": "User",
    "nonce": "0xbf385a188f9e04f8ba92f23f302e18e33f1a830878d62ce4e5823e5981e5e188",
    "signature": "0x50264b6ce9efae60032e6b5acb618c9dd099acfc7af82fc19ec4fff10df0fb1f462bcc91e925a7944f3231716aa4cbd03556ab3e0c7b9bd6ac238c87a33570271b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}