{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256148",
    "entityType": "User",
    "nonce": "0x10c536b87a5e5210b501ffb79e02f4864ef98c5c3fab2eb489ca0923893e1a33",
    "signature": "0xeadc9a26c265524c02c3d4cfbd6db440fb885c0420a00f4cd584c43306d3ecef27c186f317ec8775f77bb16ab3eaf8c30c606384b69ff1945ccb85d3bf9dbfd11c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}