{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "548504312",
    "entityType": "User",
    "nonce": "0x762b24dfa37cb3ceaec5ef402180a7b6f75daad087263f6395ea7f6700b131b9",
    "signature": "0xee7cba7493dcea61dba403cef0d2133279f24c12321c519cc5b6120bbcf3a0497288ca7ad4464ae16ef9ca4c23688d2fde4169e2c73f901c0395002ebe4d86e71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}