{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x8c17c829da0935378e121e685fd24b764d27f6475637284cfa495929240b13e2",
    "signature": "0x94d1d5a1cac2ef737141b74ec96b43baeee6e7374bb6e65b42549fc2865777e02903ba78768cda9205dc6b8fcc52c25b159c2ffd349437d121733d93473108141c",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}