{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316002",
    "entityType": "User",
    "nonce": "0x4bbfe7ab05c5ae7a5aee1f152c2d786e6de8c68d6d2bc85eaac5fa15729689e5",
    "signature": "0xf1ed75b34172243ceec267bfaaf97961f108235b56a6f97089448852e9f2b1f95983efc82c7cac028b20aec628ac21ce77723e4e92376bd824e8bdb807f77a231b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}