{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308755",
    "entityType": "User",
    "nonce": "0x4bcc56e29bfde2009d5f1cd713c2761451e42448dfbd4dae29d7b3af352cb468",
    "signature": "0xe404868eb9bae07f7ee51e9d1274ee1b8e8e67b0abf2abb1fc10715494e25677423e3de19c29930d9f10294a66a49fab9bf8b5a4319b0fd7077ab8ce468460b01b",
    "signer": "0x1366a1037C8F2E691bA2D0dF3a1176FbA4736510",
    "userId": "39692"
  }
}