{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0xce604485d1b741078728be6a47bd913b69b9085ec610d198eac3a9e3a429734f",
    "signature": "0x2218d9d955f920305b482d70b4ba692d20aa98aa7e9f05b10b10822d4a4aeb85250497a13a25c8939c9bc2416a832947e6f7d4036ba06edcea6b8c9b45c15d8c1c",
    "signer": "0x294F540CE80e30CBc9Fb7bEA94F956ABdEcdEf68",
    "userId": "809640913"
  }
}