{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1321068",
    "entityType": "User",
    "nonce": "0xf75b8e0680959c51a3c7e8217000be2ffd422296b8c4b692f4afb58073ad44c9",
    "signature": "0x30ac8ba6f17c1b8050352b3e0d8cf400468f3f1af78ee639c8ee32aba5cbd68f19f1c379dbe1546b987e0e99ac477bc64d1068d0635f134e0d5e601876232e641b",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}