{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1326067",
    "entityType": "User",
    "nonce": "0x7e55f21cdc64150dec5ecfb31e7e1ca803941c61d8604882fc8c1fd07b67465f",
    "signature": "0xcd9acd1b48ca5e836a72e6e04c0b421ffcd79fb6d5e8ef97cea359fbf4c4a3227b23deab0070680c4529c2831f523d48d1783f7594d726a4499d7d9dd6b3d1461b",
    "signer": "0xc00163EC4A1f48C70D0b676b7F5c071142de6C02",
    "userId": "227991193"
  }
}