{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc86ab216279025d33ec4c0aa5ae4d7ba7ea2b52bec12232da3890a7df0e90135",
    "signature": "0x6bc649b575fb5a31b27f32cc07044496f8aa5deb337e5a98ff4ea7698edd901232d92e0e0a136541e22cb946daf565787fec2bf29cb47ab2ad1b2643583b75591c",
    "signer": "0xd526DCCf1A4c7BC4cf4A3EEDdb1291cDF71bC0e4",
    "userId": "425836047"
  }
}