{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x49d01f6c774a6c349ec72d0c0e9d6e84b4db9a3046a3ad428d9c0323085f2875",
    "signature": "0x633dd4b258afc3221c08776c5aee56e681c7f033b9485a9e8dac92e2f27c67d1733a9f41b9ef17bddc2e21731e4590c99a5e4a4b5e155cb44c92ba585a54eaf41b",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}