{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0x119313985a713c172d620b75f3015b7b1531d0e300d9acb806fd325cc0f22310",
    "signature": "0x0e31e2011f682ab1998706c86f30293649f1ada480e7b3a6d184e8bbe0bdb4726c8d3ad0d4717ffb698cbe3b92f956f2638b41621a0633a20aca771e57c786561b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}