{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "770725415",
    "entityType": "User",
    "nonce": "0x14511fd48fff2c16f6f9d3d6fff4d119106c9f30b317f56c96242dfcec4acd7a",
    "signature": "0xa3f0ebf6df57d211035879a02ea6198c74a9845b88f298c9a35f3a77d6656169270c7680b55bac54933b7b728b45fd7bdec36429148f9cf2163c0ad0cee5f2841c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}