{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x9871f9cd958ea5891a633a6cbd6922d50d9797d689135dbac2e5b186115f9b18",
    "signature": "0xa56b8f2ac4c8078fc4455bae1f9dba929c8009bcb5312f89263f52c4b0bd21151f5c9c1e1db1c2d0dcf1fd9addc267f298a1ff922ad928a648b59a9eb1c2ce091c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}