{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333763354",
    "entityType": "User",
    "nonce": "0x12f1e3c72ea63bb796a2f21eb639d1184575ee0b5ad7fc105ea60d84427ae70d",
    "signature": "0x750ff0749fd0c96c16755f4fc47397642672d783d18117df7d89c9388bee93423cd563072f175bf4187db62f6a266974882a47155fa556074247f3b8d5a344bf1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}