{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35074bc6aa26d60c547b2dbd1887421fae1cec1a0fa8f3fc9755d4925105a002",
    "signature": "0x98dfe50e9a7d94f2ae877a81f33a9ef15ffb700a9901061ba5c6f531d840807c5b29ec727ad055a27ff291a192dcefa3cb0621ef3876dc885460a40b0b5fe6ec1c",
    "signer": "0x88Ca08fae3cda57D2c3386c1066E7c64586c8c20",
    "userId": "338144844"
  }
}