{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x93ff48123e8767c2b30bd2ba407fca5ce29080eed4ecbc44b185f1b86bf46668",
    "signature": "0x86d7ddaf53e3c932fe3c6f20c97cb622fe294701d23e5607c9703c8aeb2083a73cf0ac0436120af27f6f432c45d64996cdb5820c4bbb0af03ffaa9b658ec14581c",
    "signer": "0x538B53545E1fb97bC3766E4851D655E9Dd5B6101",
    "userId": "114736985"
  }
}