{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65468",
    "entityType": "User",
    "nonce": "0xc2c433014ec84abb8e057156e2538b8ffc12c4f46efb4be6054813b84feb1884",
    "signature": "0xcdcf22de4ed7cb71eeb1741b1603c564e57a921701636391bcf8b2b31e8a3fed6696b29a81e89c947dd02d842ba4f5b19adc13b8d5f298c5e56f2a2e5a83583d1b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}