{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "454094187",
    "entityType": "User",
    "nonce": "0xccbca74410810c9b1efdbd357a9b02a52bb389e6cf03f97d3af794c7a3fdaebe",
    "signature": "0xe5a8dbe3833bd10969b617f982bcd031eb65346216539d6d8c67ac99684af30a25edd6ee02f5ece778e4a300f538801ce380de825dd69d66b5bbd57f4ff0f43d1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}