{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "879159545",
    "entityType": "User",
    "nonce": "0x35f5db790cc76076a589d4c6fd8284678901283db847c3fa703683bc33032b1a",
    "signature": "0x409ee91ac572e07c227d448d34996aadd7e10065e12bdc88c61f9383b905a1ad284c746cc3b5cd48dbb11d9e20e13fba5ec5d3369fa2e12385ccf5498842e6ee1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}