{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1334982",
    "entityType": "User",
    "nonce": "0x518974c3b10aa0d8980c0868e51f388341f26538519d56000fa6a7454a24d8ab",
    "signature": "0x16233430698c2f7acb4f02dc5cad48944d79970613b8a4b1dc6ad89135aca8c20deee6fa49a0b01ae99fde98e934d33456f513b914edf6675363d777bb4ce0b91c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}