{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364777",
    "entityType": "User",
    "nonce": "0x7383b809d3162fbbd532d240f400fc23dbc7fe5fa4beb19be7b4a05ceb6b9934",
    "signature": "0xe461a3c505b4e0abdc04b07c460fa40d3b49644ef13ef46894364b6af7f7f80a583dae30eee895448e1af8b0e93653935eeaed6bae66da2e13977218ea1427731c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}