{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967323686",
    "entityType": "User",
    "nonce": "0x274c00715eff311fe6da8f9b77b8ab369a1db505358577f4ab1f405fdf069739",
    "signature": "0x3c9e7aefce56c7ac99388ec7a73870493c0a1317e8720b59f44a3cc4239ed1374825f0483c0fe99641d16037ed404e2d5892a04141babe8a93c5bd588133f3b31b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}