{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168128",
    "entityType": "User",
    "nonce": "0x4a5037aa576d7f5bb7ede209117670f12b654ce0edfee4f174785e1b04674821",
    "signature": "0xdc154734f0ecdd3c3dbba9282b6fdb4fd3fbbe2608583ab1e7c86acd2e7f259862504bba9710b8009df097c98cfd057d271f41dd958bfefb3126ba6a6a718e451c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}