{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384526",
    "entityType": "User",
    "nonce": "0xa371204366f077f0826e2f35fbac779b643823c60ab750508b0f7328204d4459",
    "signature": "0x948ea460783baba35bd663e53a407f0bb8380e2f98b65d94d3083de98109660503caae40d3df8b0b980ed1451f66ffbd0fb4654e580219dd9c5dfe4e46c1bb781b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}