{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10373",
    "entityType": "User",
    "nonce": "0x64899dac645508c52b16f0fcb2b4e13295d55a7e8dc6a38f9a11c7cc44d3674d",
    "signature": "0x593613adb910151038352ac7f4e63cf8e789e864f19ec02232d88eaf4f3ba4e03af1d8d62f331bbd7300c5abb581f3133143ff0c2375ca42dce2723fc7ef2ad31b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}