{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424059163",
    "entityType": "User",
    "nonce": "0x2cc63f0a1e3037e0ecec45fbf29485d841d89eeceb4d8a2e1946a1fd0cf4b835",
    "signature": "0xf039f29b0a0abdcbef4d23a9597ef5e64805a6b35a25a0df4841998009bbeffc3baa18a9b7bc037c2e8ac2b8c2329c76bec79757907f1d71a201e8bd36ad992d1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}