{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863205",
    "entityType": "User",
    "nonce": "0xfe0640b64c2f411dbd2566b76d1e9c67e06e9d41db3d37990bf45f9908962e01",
    "signature": "0x1cbacd1eed2730ee12390d4f1cc512398de02d805cc0f10b1089a558de691b50696600e0db44ebebf3bf1dce7dd6d875a818d4505fa3c7a0580b9daeb1a7bc291c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}