{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104457",
    "entityType": "User",
    "nonce": "0xd8d9116f631b777a6f47d40190d095864fc40a40d4ee174e57634dca52e1d988",
    "signature": "0xcb156b4b9837e5cd5111bf59045dc5a461f5222a79240f5ca0dd0525419d407638185525babae0f08c60c24c0ce4e82d1d0010f35c5c055b3bf237bd79bef2101b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}