{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374746",
    "entityType": "User",
    "nonce": "0x662727b70f87d715176be1b1e20eeeeb48a4f629d17f35a826a0106e3ec95015",
    "signature": "0x24f5bd07a189e5be4342844bff89412981d8d202b0abb0fd2fd8a6e0f1db2008589c9ffb46c1bddbe02c609b917ab032bfefb0d72f4f4f1124312daf48afd02e1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}