{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x07a250bfa634b7c71221ee1b0db417d88ed9ea84a9b5edb076dadca0cd786237",
    "signature": "0x0eebb78b98f0c267220659e05223fb4b8235189e74777419b8b8c5634f6191ea3439b22c61e1e8cbe0192871f3a1784fd9c01b8b52aadeed4607e2c5297f325e1c",
    "signer": "0x1523dBDd49A653271BD1F378eF3fc77B20b4f2C1",
    "userId": "315268152"
  }
}