{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xa627908d5347507319d51db1a461027b58fc8fa02f7e40ea2dcb5c9a21c8240d",
    "signature": "0x1c1865bda1b101eebe6d1f2c267a0c401674a592f081410b67bd7c6fc10b30200c721eca60f1f3eb04a9fb93f979ce851bfa0f93dd5fb0bc3c12ffc6ddd750101c",
    "signer": "0xb1B522e4c290853bC2ABb1D802d311A7EB1e696B",
    "userId": "94334210"
  }
}