{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1316854",
    "entityType": "User",
    "nonce": "0xef7e41e0eafef0bb83976f367d8849ff2674f2daa04431124bfcca264f37bd20",
    "signature": "0x9889894aef795adfbcdcf93c720d1178f530ab742e561b1ed85323eea0ebe7bc019a868fbb63950e63bf2c043879cdcb42bff638477556214e85a1f2a894b4c41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}