{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xf608932a85769654fc66bbd8d3276f7d7f41cd6065ec97624a291b53d44115be",
    "signature": "0x21ef64117199ac7010d45c570696f63b0448835babcebe710e93db76e3262e8a68774acfb131081564f3fadbd84e751a8756d164f12cd316d8c84a06d99ecffd1b",
    "signer": "0x9F1ba5048fD5fF69319Fd398E4e181b46451aB6b",
    "userId": "539136535"
  }
}