{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x5d141a2fb5ab555646b98d673a197ad8e8504c47203587096a08b32c068f2711",
    "signature": "0x55b6d4adbf7920727ccbe556c167a722f79ad0111d78fc100c1447619232de0171f63152397968e3bfc3ff3d79bb6893abfaa7e8136329c8df4fef817e99e9561b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}