{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17152",
    "entityType": "User",
    "nonce": "0x5504768d841601de4ef7dd9a22f197cdd6fc5cc4cd2cbeedd7083e2a03e9c8a3",
    "signature": "0x1dcd5b76367d3294a4288ae13cf8730110e9cb3b1cfbc2b2bbe95450d509489d6d5953c223beabba63b4c38ac0f8799083aec21c1211dbf37040276e78a1edfb1b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}