{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x38918cb23a3fa9cb71321bfc8c6ab9b914d7e8c140e032d4eabe2d74aa4bb5fa",
    "signature": "0xaa2b8745b0fe4c21e37807eadc402deb14c3d6507ea73a16dc80b68ad4b31cf65cb435f583f7b6bf2f1b5d5ed5a7c0ab4949f3c95e120d40c8cb5d8d51224d451c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}