{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50722",
    "entityType": "User",
    "nonce": "0xa85a5923ea9f9c7ed02705df9fdd471eac4edb27abce1a0cfb0b66f1d58d7c92",
    "signature": "0x630a30f48e8a9be30f352fa2c4bb3c2d0b2212ec3ebc8ed224521f7f30f0420272db5b49d106c62efda337f72fbcb8a507a7443dd862e36097c95ce5a43cd81d1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}