{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322129",
    "entityType": "User",
    "nonce": "0x1d724527e96d9e2aecc2ad7bba27596f652b0d7684a35615b3f8d3687c8a42c5",
    "signature": "0x9952e4aaf601a711694629a834a3423673ff722d2ed237c3935c3e47199b94f216202e8b58dec9dd2eebc421d3ce04ff92075271bef1f382af14a5b7c20f015b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}