{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x2d44370aa8ae683a290b668a54a62341b41b9906c7b9c96f5017ffe2789e29b2",
    "signature": "0x1b2cde1f0f6b9beaf825a3ea0d992649538eb01a87bfe278557686028b59e0ec354861603de9d89630b84341b78c2e770fd9aad68336a5a0c2a228576f80c8431b",
    "signer": "0xd8331bd2c1c12F409a0D8f73FA21a7287E0460d6",
    "userId": "449077915"
  }
}