{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x16a36cd7cd2e86648e0938fc160cf1b3d3994ad29588e878595c8098191fe405",
    "signature": "0xf7783af68644926de74c911c0e38afcb56a8b0ca9d06530002c0909b15c0a4020ff25eb92cf296f1b60a7fc3031b5bf33ce55c76537ecb11f72aa0472fb8de321b",
    "signer": "0xBEd052148865fe7f70aa0B2c04705BC05e77D4c5",
    "userId": "490321291"
  }
}