{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5862",
    "entityType": "User",
    "nonce": "0x975cfd21b070ce94da1b57cf44a53b0d4a2eaa36a59ca8cef4a4fc66e0f84759",
    "signature": "0xae2bb20add06f04c7d5d18ab7e96c419b36a628574a87929d54723d58f833c3c1253ad97b5a4d4ced375d583bcd54d9ff7d0fcbb0a26e61d6e30f303384694501b",
    "signer": "0x607D26fCBC981BBf1f9b7a1ee2EB8444b128239C",
    "userId": "68884680"
  }
}