{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203043806",
    "entityType": "User",
    "nonce": "0x0c6becb2cfee2f2c684f957e42e7b2cb974dcbbbc888a4c3c673d16585ce1fbe",
    "signature": "0x727a96031f175d8772061594c32eb53930da35d2c57d33785c17f6e28fd507d940919b3af735c74f5486b6b3352fe301834a415d872d3f9b99c858b6f5ce8c311c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}