{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38769",
    "entityType": "User",
    "nonce": "0x0f10737cedd60a6a4b88725fbb4eefea29344930570dde550273f1d9934209a1",
    "signature": "0x28754d59fd462c94bb9e808105bb79f6461552a540f1a39000e2be89a43eb0a67faf2d0d4232b5fe89610c4ce822912669c7b63d994705fd6478eb5283d6aaf01b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}