{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "165688",
    "entityType": "User",
    "nonce": "0x75d175d255f83b5f4e088a5f04238f009a7fb7f321b3590a5db2da260efa605e",
    "signature": "0x0c1ddb4c4bf0f21bd8e51bdcefafcda0b74e4bbc050cd8dff42890d8d0bcee060d0c925ff88592e30185ce487e4d8cdbbfc1dd0e5d6074c9fc80affb121edc801b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}