{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323938",
    "entityType": "User",
    "nonce": "0xe89745aade1296f4467f8798d135481607e51e0e694e7651e76df1fd4d874c4c",
    "signature": "0x4d357d310de5e6c469f2a3db1196bfa2fb2cb65e2f720b72d79966e6b4a41df97b230cec356f641b13d792800f0c5cffb1b2804d9ab0b46e30d9659b001dd1191b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}