{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3967b8ea623cae86b68e28c6e93f5817e582ae188a139674d89602082f0450c9",
    "signature": "0xa5821cdeaaab15a451df949b3489d38511fe6dafb9406d07e913014a3f8c3c2a54a833f38325656b85354fb3b0f87bfd33377c2b562e8356ec653e580ae6bf091c",
    "signer": "0x1a147743B42c698635b461aE6581bCe086e2Bb58",
    "userId": "7129935"
  }
}