{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "694628444",
    "entityType": "User",
    "nonce": "0xf6f21c06ea430a6612896382acb237b4ef0fff86db04baa9c8c32524d1654933",
    "signature": "0x710dcfc6ebfdf8a070ce72042776d28adf179d2c12d7cbb6a65c07a51ab635697400e779218cbe18a74de235c80051c30098da7eb5b6d952df51e6517350c51f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}