{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90731",
    "entityType": "User",
    "nonce": "0x6ce18785120e392c2058422b0f01e9e71c59e17424c66b410b627f213aaba5e4",
    "signature": "0x1d17188917bb3a682214ceda324772693d7e03466194166ed40b3eef827203fc65d47218694269ba5c45dbc00b3ac62e618c98b3cff3120f0579fb914484a0e61b",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}