{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x751d25f7c8fe04dd0a701fe13ea49b82780ebbdda33014b533ae6751c2f2d5a2",
    "signature": "0x247dd0c79581671a1b66fe6d50c3fbe61c1e635d8cad555467e4f47761e8f34143ad8a2e22d074d515353ef68a17b4cc62499ae34f669b29cb2ab9b4be7377751b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}