{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268900563",
    "entityType": "User",
    "nonce": "0xc6942231c73a78a9be863e030144f975cd8d7984b37bad9fcc10a673ad56321d",
    "signature": "0x2338c3de62bbc76ead517c41b98cea263ac42e99cb470a29c7e05c221f343b372b9a6ce801183a6604698cbe49fc124503c73678f96ff16ed72bb1d6353af1541c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}