{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0x97d0b03abf9fcff0b3d9e180c042f48b4e45a26ada97efe3c7a8b814af7dd1c4",
    "signature": "0x6b7d88e5f11c4dd5ebe1b895edd3991614a3dd1920b283e159dfb971368df1d77c2e2fe27dac6172e59b6259086221d237033e32132fd2c2aa793c4e49505c4c1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}