{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "263604",
    "entityType": "User",
    "nonce": "0x31d1a3331ac65ea441f45c4e7b21751e549fe8fade2b83c588a990851db5fc7c",
    "signature": "0xde2f104015b9116c5bba33e493d9477f9ed2e17630e82e592a68a3062e58ad6360173db613393384f4a00ce7e408c646d646e1be45201951e358c8a16330de651b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}