{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010556",
    "entityType": "User",
    "nonce": "0xda81e48ea38dcdf87a20b63b6ca234bb7f842763f12c4bb3a01aaa34e91630d0",
    "signature": "0x390fca616c27bd2a25f26e21507e41a3e1e177215109e9303dfd70a27c70d7c954a03cf220c3a5f1f3ff954b7172ef5da6ae1048d6d2a4f324469ac6b4d0684b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}