{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x083aeb173366370d615f2824c40541e007cb534d53315dfc5e8d3cf69aab47c7",
    "signature": "0x95e4ddaf6629b3b9e56d385876ea822443c542cb636c35f97081aa817a10f88c23ad3aaab34b206c931cc8bc7673628737784b7ef06f9ebead5dc3cc49e3726d1b",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}