{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "266305231",
    "entityType": "User",
    "nonce": "0xcd6e62dc2941e49f4a7e0d1ad0e54639fb39d934f1f74cb21f6803533a02dbbd",
    "signature": "0x9de49d4f4396bb56fd553bfc6a31b3d545af10ed9c769b1b3f0475f063312cb5640d438676e6010d9da9b15a9b4f255f240fb8d0b0143d66368fcfb300e6afc31b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}