{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0x98f8d18eb81ed66e8a057f53ee51e85b5961cc867f623919849eabed9be8ba13",
    "signature": "0x6e180bc69346dfc582a53397d44b7125735bf04a8dd64a32e03668aba3c7b31d188d1af305d8a251e124f97b8eade31187dd0bce8bb9c9ba8b9e39ca2536a3681c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}