{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396557",
    "entityType": "User",
    "nonce": "0x89968646aebfd05e175da65ba62ab32ddcc2bb2f18e0bb48dd278ea62ab642a2",
    "signature": "0xcba37a333cf391dbc16e09d01724cfc54c2fd7a771ffde42677a775295518f6c56287f733d5436b6f60c1f88dd1387c1449c38843d0dcd19d1732bac39d09ec21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}