{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x3891ab71782aa1205b8d3d39eb3ca3aa7f59a36960ce37a3e2d9f9529b874595",
    "signature": "0xd4729b35ed9b117d490fd6a86d525990b515f93c997794015c92c099871482b20cae539458e0a10c865c15ea99cee26a6a8c52e5d1dc960b2e26f2f334eaf2db1b",
    "signer": "0x80B32192ce8F9b3450dBa022af9F0cF2a3Ef0094",
    "userId": "923732594"
  }
}