{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x46299391a1173971c2dec87ca4505580586e8d4b4e7613cd149e317903ff6ef6",
    "signature": "0xdefacd866e10463db40b343fc74deb494c3b9a2560e513569432c6f12b62d5ae43af841aedbbea9f39b3a48617c4fc063f1ca93df11ba00560fafd1e46c6c8eb1c",
    "signer": "0xb66FC37b88D26E0e013aDed6897eD50553F83825",
    "userId": "167460105"
  }
}