{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296214",
    "entityType": "User",
    "nonce": "0x3fdaa7985d943a198f1bfa4ab0b90a3edab4a69dda99e5e872ed763ac2537211",
    "signature": "0x9c9f29e094f82e0812c0fc926afc911144733c80c423513245373a5176923bee767693eec9ce9f2e6646858471d37a21ffb77a4fb0f5f18655ff1764b9ed987b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}