{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x108e3558f089aacabd8c46eb82ee0b5298cda08b3faae59d3712e0e77972ad8e",
    "signature": "0xc5a1dc43cd0d06a7d6fbb6ef1af199755b2fc7085c9a8d844c5ffa190dc6c7b62bdc88c38ffc491c77f87e93846975acc66f4c956a9f60478f1aa26383d5dc181c",
    "signer": "0xF72264d089Ab5930038F1492eAb4bB7D7304C4af",
    "userId": "27060080"
  }
}