{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228434",
    "entityType": "User",
    "nonce": "0x4bd13b52c242b8bf91f286860e135d59c7b82b2b9d3110e324462db1738c1ebe",
    "signature": "0xb21c9863b2d6b1f5a616032a31a5b4f8e0ce6a26b9957bcea4818f959535af1f1d542d06a63726c5706c4a228dd0fa23dfa67e3c70b9fea8396c8090b9bfc7d71b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}