{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937139185",
    "entityType": "User",
    "nonce": "0xbd733e32dade0239d52f85fadb985736bbdf4a4a83dbbca193c8ee0650b8f83c",
    "signature": "0x382bb7a21657e167ef3f132ba32a1d41aa075877a4696fdfda253ace13cca83e6f6c96254b5d3a38bb0ca17768f9233f136a5ea3863c5f9bf818da500c356f911c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}