{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9aaea58468887e9bee00b96035c776c785801f8610d2673020f3365e5d5392f3",
    "signature": "0x0e6f9b8ec0c8b1afe5c0556ffca23e649caa35344716f7e460c1b4ec46582f8350730c8a2cdf07b8e8e6c7f35164fa6f94663dce304936d4b1cbade2486dd6741b",
    "signer": "0xa755C236e2776D310dcb42ceB312c667034178b5",
    "userId": "124166714"
  }
}