{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1780850",
    "entityType": "User",
    "nonce": "0xe1edd913501ef2fa7b9fc5bc8bdab8a55c19b7073b2ab6e24425714d98cc6ebc",
    "signature": "0x36a72621e7f1b7265337cab03c8994b67cb781cac3a5ca6583f6936e19d5d68a2cbede92b96f9ae5548978dbb3b104d2a4065378c7b8719d75060a48260194d91b",
    "signer": "0x5E1b23614a9da638dba09e8aB2E9B76ed81c688f",
    "userId": "306948669"
  }
}