{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352986",
    "entityType": "User",
    "nonce": "0xa4affa09ab5f8807eab9e663623e73de5ff6275361d9b136ff858604e3a511db",
    "signature": "0xca7d3b9dfa14240e2cdd9bf52360e17e7c5e7b6f00a03b9fcb0c7a6bf94eacf50e53b786c6d1fb8d6a8a2c71140c53ed97be90a7f0cfe1f96ec84a0071d83e8c1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}