{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "546368840",
    "entityType": "User",
    "nonce": "0x0ab89bd090a48a4b6a249865a3d89eb5b3c203eff205bf782a44d07b150ce9f5",
    "signature": "0x1ed303934060d435dd7f567bac36c7e4b66b0f53865c661fbd4e13f878947b58517bfbaf83089fde8fe82a11e94bb92e81b5ed16d9e722bcb7c89941a38d781a1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}