{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x9f8694155a622d430606c26d660238059c13dc2bb4d3cf6d4883692dd957d565",
    "signature": "0x38fee9c4fa654dc2d07a11338248aef1ee9a8d6e7ef6debbe07adb1ec7a5f4f24b4dab5735bc642e530ed17179e06dd5984885da81386a292a641606fc23e2cf1b",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}