{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1493333",
    "entityType": "User",
    "nonce": "0xc1330f8a8b089ef20fcfe6759e913b911c1fd2f525f28426fb93dae955c12977",
    "signature": "0x64da78f8f219b87968c02d7cadd3b30d5a1e1e4fdedb8d2039f8f3af4fd05f3d408580af53e1550cb0a1f62efdb33c411e749a652db6a1c27390cbb062845dfe1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}