{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111467392",
    "entityType": "User",
    "nonce": "0x7491e9f3496dbdfc9642d964be80db2c50bec391e75e2ede8568dbc235175d8d",
    "signature": "0x0cfb5395b2c965323187f62d55f24a9aef1c541eb47ad4497c8e9686e8f14cbe3cff33298641a69d3c4712a1e535ad89d580cd1eb79bed15e98ac40a41fd68d21b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}