{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xa1d673c9c003414305caeb426d89e45a3827f13c862a26c0a66a1e074044c347",
    "signature": "0x4aefbe7579ce7f320a164a30edbda3ee3c4e5565a66681505e7a5bc9520c807d41ecb5c5e9a3dc70e7d11593375b2f4565043ee4a35e787f83fd8bd40304003c1b",
    "signer": "0xfbFefBb3b91188C464571EE7439f422d7f2Fc0c7",
    "userId": "326301280"
  }
}