{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40102",
    "entityType": "User",
    "nonce": "0xe10b77d93c4c82a25fbbfe5e0db15e9bf114b77e0f3a27ff766ee9277492d081",
    "signature": "0xdc61d9b53c8bc99b654da3ceb06ddc91a6e7c80d4fd9aefd00fed29f1f4ffdaf003d5455c2578f90a0f673c4de1d08a5966c25b7aa963e9cdedd4b836a9d51241b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}