{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7229b6a08afef2b009434659f3064293d8de488f44206b972a680f647d55a06e",
    "signature": "0xe65a82e3547dd08c37d583eb07c17f262ea349562e6c2e9f59ceda6595d044c50053fbfe98746593d49db1a270968ea493a36e047e3cb9557eacb57e8453a28a1b",
    "signer": "0xFEDCE9571420bCe19ba296c221c64833137c1419",
    "userId": "760753365"
  }
}