{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151698",
    "entityType": "User",
    "nonce": "0x6f4a1c36f36344f7491b3a58b091dbe23bedd8f02d896afe8d1892c3588001d1",
    "signature": "0x44890accf660b0305ce37629878a92d519f2fdba48cc26858a79efc19e50dbc5064a02f1409e9dab9db4a13bf229ec58b6790863fd2f24342a827c27f9f61caf1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}